| SFBirds |
| Received |
From |
Subject |
| 7/3/25 7:04 am |
Dominik Mosur via groups.io <dominikmosur...> |
[SFBirds] Continuing MAGNOLIA and AMERICAN REDSTART @ Pine Lake 7/3/25 |
| 7/2/25 7:02 am |
Dominik Mosur via groups.io <dominikmosur...> |
[SFBirds] Magnolia Warbler continues 7/2/25 |
| 6/30/25 10:02 pm |
Aaron Maizlish via groups.io <amm.birdlists...> |
Re: [SFBirds] Magnolia warbler continues |
| 6/30/25 12:04 pm |
Sally M. Walters via groups.io <bajaowl...> |
Re: [SFBirds] Magnolia warbler continues |
| 6/30/25 11:49 am |
Liam Murphy via groups.io <liammsf...> |
[SFBirds] WHITE PELICANS at Crissy |
| 6/30/25 11:02 am |
Nancy Palmer via groups.io <nancy_palmer...> |
[SFBirds] Magnolia warbler continues |
| 6/30/25 7:42 am |
Brian Fitch via groups.io <fogeggs...> |
[SFBirds] Magnolia |
| 6/29/25 10:19 am |
Dominik Mosur via groups.io <dominikmosur...> |
[SFBirds] MAGNOLIA Warbler @ Pine Lake 6/29/25 |
| 6/26/25 11:57 am |
sf_colleen via groups.io <sf_colleen...> |
Re: [SFBirds] American Dipper at McClaren continuing |
| 6/26/25 11:48 am |
sf_colleen via groups.io <sf_colleen...> |
Re: [SFBirds] American Dipper at McClaren continuing |
| 6/26/25 11:04 am |
Steve Kaye via groups.io <stevekaye...> |
Re: [SFBirds] American Dipper at McClaren continuing |
| 6/26/25 7:46 am |
Whitney Grover via groups.io <wlgrover...> |
Re: [SFBirds] American Dipper at McClaren continuing |
| 6/26/25 7:19 am |
Liam Murphy via groups.io <liammsf...> |
[SFBirds] AMERICAN REDSTART Bernal Hill |
| 6/25/25 12:17 pm |
Nancy Palmer via groups.io <nancy_palmer...> |
[SFBirds] American Dipper at McClaren continuing |
| 6/25/25 7:49 am |
C Lou via groups.io <cdlou37...> |
[SFBirds] American dipper at mcnab lake in SF |
| 6/25/25 7:35 am |
C Lou via groups.io <cdlou37...> |
Re: [SFBirds] Southern Waterfront breeding bird miscellany |
| 6/25/25 6:35 am |
Eddie Bartley via groups.io <eddie...> |
Re: [SFBirds] Southern Waterfront breeding bird miscellany |
| 6/24/25 2:26 pm |
Liam Murphy via groups.io <liammsf...> |
Re: [SFBirds] Southern Waterfront breeding bird miscellany |
| 6/22/25 10:19 pm |
gene_ggaschat via groups.io <gene_ggaschat...> |
Re: [SFBirds] Southern Waterfront breeding bird miscellany |
| 6/22/25 11:26 am |
Bob Hall via groups.io <bilgepump100...> |
Re: [SFBirds] Southern Waterfront breeding bird miscellany |
| 6/21/25 7:39 pm |
Liam Murphy via groups.io <liammsf...> |
Re: [SFBirds] Southern Waterfront breeding bird miscellany |
| 6/21/25 6:34 pm |
Eddie Bartley via groups.io <eddie...> |
[SFBirds] Southern Waterfront breeding bird miscellany |
| 6/21/25 8:52 am |
Liam Murphy via groups.io <liammsf...> |
[SFBirds] Confiding MACGILLIVRAYS WARBLER at Elk Glen |
| 6/19/25 10:54 am |
Keith Maley via groups.io <keith.maley...> |
[SFBirds] Least Terns cont. - India Basin |
| 6/17/25 2:30 pm |
Dominik Mosur via groups.io <dominikmosur...> |
[SFBirds] First SF record of breeding Blue-gray Gnatcatcher + other breeding/misc. observations |
| 6/13/25 8:02 am |
David Assmann via groups.io <david_assmann...> |
[SFBirds] Gray Catbird |
| 6/12/25 10:07 am |
Daniel Grossman via groups.io <dcpgrossman...> |
Re: [SFBirds] Rose-breasted |
| 6/12/25 8:54 am |
Milo Linaman via groups.io <linamanlearn...> |
Re: [SFBirds] RED-EYED VIREO continues Log Cabin Trail |
| 6/12/25 8:53 am |
Milo Linaman via groups.io <linamanlearn...> |
Re: [SFBirds] RED-EYED VIREO continues Log Cabin Trail |
| 6/10/25 9:56 am |
Daniel Scali via groups.io <daniel.s.scali...> |
[SFBirds] Northern Parula Log Cabin continuing |
| 6/9/25 11:27 am |
David Assmann via groups.io <david_assmann...> |
[SFBirds] San Francisco Annual City List through May 2025 |
| 6/7/25 7:56 am |
Dominik Mosur via groups.io <dominikmosur...> |
[SFBirds] Pine Lake/Stern Grove 6/7/25 |
| 6/6/25 6:50 pm |
Steve Kaye via groups.io <stevekaye...> |
[SFBirds] Pure white hummingbird on Mount Davidson |
| 6/6/25 5:10 pm |
Dominik Mosur via groups.io <dominikmosur...> |
Re: [SFBirds] RED-EYED VIREO continues Log Cabin Trail |
| 6/6/25 3:42 pm |
David Couch via groups.io <dhcouch...> |
Re: [SFBirds] RED-EYED VIREO continues Log Cabin Trail |
| 6/6/25 2:38 pm |
Dominik Mosur via groups.io <dominikmosur...> |
Re: [SFBirds] Solitary Vireo - Buena Vista Park 6/6/25 |
| 6/6/25 12:36 pm |
Dominik Mosur via groups.io <dominikmosur...> |
Re: [SFBirds] Solitary Vireo - Buena Vista Park 6/6/25 |
| 6/6/25 12:20 pm |
Dominik Mosur via groups.io <dominikmosur...> |
[SFBirds] Solitary Vireo - Buena Vista Park 6/6/25 |
| 6/6/25 12:05 pm |
Alan Hopkins via groups.io <alanhopkins...> |
[SFBirds] Farallon webcam bird |
| 6/6/25 11:22 am |
Nancy Palmer via groups.io <nancy_palmer...> |
[SFBirds] RED-EYED VIREO continues Log Cabin Trail |
| 6/6/25 11:13 am |
Peter Pyle via groups.io <ppyle...> |
[SFBirds] Still a few spaces on June 15th Noyo pelagic trip |
| 6/6/25 10:34 am |
Daniel Scali via groups.io <daniel.s.scali...> |
[SFBirds] MAGNOLIA WARBLER |
| 6/6/25 8:48 am |
Keith Maley via groups.io <keith.maley...> |
[SFBirds] More Rosebeaks - Mt. D |
| 6/5/25 7:31 am |
Dominik Mosur via groups.io <dominikmosur...> |
[SFBirds] RED-EYED VIREO Log Cabin Trail /GGP 6/5/25 |
| |
Date: 7/3/25 7:04 am
From: Dominik Mosur via groups.io <dominikmosur...>
Subject: [SFBirds] Continuing MAGNOLIA and AMERICAN REDSTART @ Pine Lake 7/3/25 |
The Magnolia was been joined by a first summer American Redstart this morning. Both birds currently at SE Willow patch on the edge of pine lake - countersinging.
Happy Summer Birding,
Dominik Mosur
San Francisco
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Date: 7/2/25 7:02 am
From: Dominik Mosur via groups.io <dominikmosur...>
Subject: [SFBirds] Magnolia Warbler continues 7/2/25 |
Singing persistently here: 37.73638, -122.48849 but if you come looking for it don’t glue yourself to one spot as it ranges around the east end of the lake. Best way to find it is to listen for its song.
DM
SF
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Date: 6/30/25 10:02 pm
From: Aaron Maizlish via groups.io <amm.birdlists...>
Subject: Re: [SFBirds] Magnolia warbler continues |
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Date: 6/30/25 12:04 pm
From: Sally M. Walters via groups.io <bajaowl...>
Subject: Re: [SFBirds] Magnolia warbler continues |
Can you confirm gender or age?
Sally M. Walters
Sacramento
<bajaowl...>
> On Jun 30, 2025, at 11:01 AM, Nancy Palmer via groups.io <nancy_palmer...> wrote:
>
> Magnolia warbler found by Dominik yesterday continues but has moved to the north side of the lake in the Eucs. Approximately here: (37.7363972, -122.4884398).
>
> Best,
> Nancy Palmer
> SF
>
>
> Nancy Palmer Photography
> www.nancypalmer.co
> IG: @_nancypalmer
>
>
>> On Jun 30, 2025, at 7:42 AM, Brian Fitch via groups.io <fogeggs...> wrote:
>>
>> Dom’s Magnolia Warbler continues as of 7:30 this morning, singing in the southeastern willows of Pine Lake.
>> Brian Fitch
>
>
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Date: 6/30/25 11:49 am
From: Liam Murphy via groups.io <liammsf...>
Subject: [SFBirds] WHITE PELICANS at Crissy |
Paul Gallaher found 5 American White Pelicans at Crissy lagoon this
morning. 3 of the 5 are still present now at 11:48, pretty near the west
end.
Good birding,
Liam Murphy
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Date: 6/30/25 11:02 am
From: Nancy Palmer via groups.io <nancy_palmer...>
Subject: [SFBirds] Magnolia warbler continues |
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Date: 6/30/25 7:42 am
From: Brian Fitch via groups.io <fogeggs...>
Subject: [SFBirds] Magnolia |
Dom’s Magnolia Warbler continues as of 7:30 this morning, singing in the
southeastern willows of Pine Lake.
Brian Fitch
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Date: 6/29/25 10:19 am
From: Dominik Mosur via groups.io <dominikmosur...>
Subject: [SFBirds] MAGNOLIA Warbler @ Pine Lake 6/29/25 |
Singing away - currently in the alder next to the rec building at east end of lake.
Caution - there’s a concert starting at Stern Grove so the park will be loud and busy for much of the day.
Dominik Mosur
San Francisco
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Date: 6/26/25 11:48 am
From: sf_colleen via groups.io <sf_colleen...>
Subject: Re: [SFBirds] American Dipper at McClaren continuing |
It’s back about the wooden bridge. Pretty close in and very cooperative!
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Date: 6/26/25 11:04 am
From: Steve Kaye via groups.io <stevekaye...>
Subject: Re: [SFBirds] American Dipper at McClaren continuing |
Now it is down by the edge of the pond.
> On Jun 26, 2025, at 7:46 AM, Whitney Grover via groups.io <wlgrover...> wrote:
>
> Dipper continues this morning, just above the wooden bridge. (37.7215705, -122.4152248)
>
> Amazing!
>
> Whitney
>
>
>
>
>
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Date: 6/26/25 7:46 am
From: Whitney Grover via groups.io <wlgrover...>
Subject: Re: [SFBirds] American Dipper at McClaren continuing |
Dipper continues this morning, just above the wooden bridge. (37.7215705, -122.4152248)
Amazing!
Whitney
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Date: 6/26/25 7:19 am
From: Liam Murphy via groups.io <liammsf...>
Subject: [SFBirds] AMERICAN REDSTART Bernal Hill |
Morning all,
I happened upon a singing American Redstart this morning while walking near
the Bernal Hill painted boulders. Pretty skulky bird and fell silent a few
minutes ago, but could still be around.
37.743879,-122.411533
Good birding,
Liam Murphy
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Date: 6/25/25 12:17 pm
From: Nancy Palmer via groups.io <nancy_palmer...>
Subject: [SFBirds] American Dipper at McClaren continuing |
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Date: 6/25/25 7:49 am
From: C Lou via groups.io <cdlou37...>
Subject: [SFBirds] American dipper at mcnab lake in SF |
The American Dipper is in the little pools of water by the inlet stream.Has been along the boardwalk. Not shy.Calvin Lou 748amSent from my Galaxy
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Date: 6/25/25 7:35 am
From: C Lou via groups.io <cdlou37...>
Subject: Re: [SFBirds] Southern Waterfront breeding bird miscellany |
American Dipper still at McNab Lake in McLaren Park.Calvin LouSFSent from my Galaxy
-------- Original message --------From: Eddie Bartley <eddie...> Date: 6/25/25 6:35 AM (GMT-08:00) To: <SFBirds...> Subject: Re: [SFBirds] Southern Waterfront breeding bird miscellany Super cool on two Oystercatcher-lets. Thanks for sharing that happy news Liam! If the barge is indeed where they were hatched, glad it stayed in place long enough for that to happen. They can be very good at hiding despite their size.
So that's a second pair incubating on the Aqua Vista tern pier. Seems a little late in the season for that behavior. Perhaps a second try or maybe they are young parents. Noreen witnessed a nest exchange there yesterday.
Another historic nesting location for BLOY on the southern waterfront has been on Double-rock - located at the southeast yawn of Yosemite Slough. Haven't been there in months but be good to keep an eye out just in case.
Eddie
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Date: 6/25/25 6:35 am
From: Eddie Bartley via groups.io <eddie...>
Subject: Re: [SFBirds] Southern Waterfront breeding bird miscellany |
Super cool on two Oystercatcher-lets. Thanks for sharing that happy news Liam! If the barge is indeed where they were hatched, glad it stayed in place long enough for that to happen. They can be very good at hiding despite their size.
So that's a second pair incubating on the Aqua Vista tern pier. Seems a little late in the season for that behavior. Perhaps a second try or maybe they are young parents. Noreen witnessed a nest exchange there yesterday.
Another historic nesting location for BLOY on the southern waterfront has been on Double-rock - located at the southeast yawn of Yosemite Slough. Haven't been there in months but be good to keep an eye out just in case.
Eddie
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Date: 6/24/25 2:26 pm
From: Liam Murphy via groups.io <liammsf...>
Subject: Re: [SFBirds] Southern Waterfront breeding bird miscellany |
Following up from these messages with a couple updates from Heron's Head:
- LEAST TERNS were present again this afternoon, at least a couple seen
over India Basin and a few more out over the bay. Three small-ish terns
were roosted on the back side of the gravel berm, in a location where I
could only view them distantly. I think they were Forster's Terns but I
couldn't definitively rule out Least.
- I just watched as a BLACK OYSTERCATCHER flew across the water towards the
Recology building and landed on the rusted barge below with the stenciled
name WESTAR XIV. When the bird landed, two still-downy young came running
over to get a taste of whatever their parents was bringing back. So it
seems that while they may have moved off the exposed roof, the
Oystercatchers have once again succeeded in reproducing here.
Cheers,
Liam
On Sat, Jun 21, 2025, 7:39 PM Liam Murphy via groups.io <liammsf=
<gmail.com...> wrote:
> Thanks for these notes Eddie!
>
> On my way out to India Basin today, I saw 4 White-throated Swifts flying
> quite close to the elevated 280 freeway. Since I was driving and in
> traffic, I can't be sure, but the birds were flying in tight proximity, I
> did wonder if they might have been pairs or a family group in the proximity
> of a nest site somewhere in those overpasses. Definitely interesting!
>
> And by the way, 4 or more Least Terns were once again foraging in the
> India Basin around midday. It would be amazing if an area could be
> protected if these birds wanted to attempt to establish a colony on this
> side of the bay. But, as you note, the aggressive pace of redevelopment in
> that part of town makes that seem unlikely.
>
> Good birding, and hoping for more breeding birds in San Francisco!
>
> Liam
>
> On Sat, Jun 21, 2025, 6:34 PM Eddie Bartley via groups.io <eddie=
> <naturetrip.com...> wrote:
>
>> Super cool on the first SF breeding record for Blue-gray Gnatcatcher in
>> the "re-created" hollow in the Presidio, thanks for sharing that good news
>> Dom.
>>
>> Due to the general lack of open space and pittance of quality habitat on
>> the east side of SF (relative to the central ridge and west), breeding of
>> birds is much suppressed on this side of town. Also, it appears the ever
>> burgeoning Raven and Crow populations have eliminated much in the way of
>> backyard songbird breeding compared to 20 years ago. These clever corvids
>> are really good at finding nests.
>>
>> Any bird breeding activity is something to celebrate so I'm adding a few
>> seasonal observations from our Southern Waterfront area ramblings for any
>> folks interested in this sort of thing.
>>
>> *Aqua Vista Park:* About 5 years ago, at some expense and with good
>> intentions the Port of SF installed a Caspian Tern "platform" replete with
>> tern decoys and audio playback (until the solar panel powering it was
>> stolen about a year later). The idea was to replace the dilapidating pier
>> that the terns had adopted and successfully bred at for at least a decade
>> before it finally collapsed during winter storms. Unfortunately the terns
>> never took a liking to the new platform having likely lost their homing
>> mechanism in the two (or 3?) years between the old pier collapse and the
>> new platform installation. The decoys are still there, most all listing on
>> one side now. Noreen and I take a look each spring a time or three in
>> hopes (though less and less each year) that they will re-establish. So it
>> was a fun surprise on two recent visits to see a pair of *BLACK
>> OYSTERCATCHERS *take up territory on the platform. One at a time sitting
>> for long periods of time as if incubating in the exact same location
>> sheltered in part from one of the listing decoys. Quite exposed but who
>> knows, might could work. Coincidentally maybe, this is the first year that
>> we have not been able to detect Black Oystercatchers making a breeding go
>> of it at Heron's Head Park. First noticed an oyster-let there during a
>> butterfly survey about 10 years ago on the dilapidating Lashlighter Pier,
>> which completed it's collapse about four years ago. Oystercatchers then
>> took to breeding on the roof of the Recology recycling center (with many,
>> many Western Gulls) which probably made for an ever-greater exciting first
>> flight for any surviving oyster-lets. Despite those odds, most years in the
>> past ten we've usually seen a young darkish-billed juvenile Oystercatcher
>> foraging along the rip-rap at Heron's Head. Nature can be super resilient
>> that's for sure!
>>
>> *Red-winged Blackbirds, India Basin & Pier 94: *another interesting
>> breeding adaptation is the apparent move of a breeding colony of RW
>> Blackbirds from the very east end of India Basin to Pier 94. Up until the
>> early 2010's at least RWBLs nested in a patch of willows until "The
>> Shipyard" developer apparently decided those willows must go. Maybe they
>> didn't like the occasional campers. Not too long after that, and shortly
>> after the uplands portion of Pier 94 was raised with dredged materials and
>> planted with some natives, a few RW Blackbirds began attempting to nest in
>> the Coyote Brush and Toyon there. We've seen young over the past few years
>> but never as many as this year. Per our eBird reports: seems a few (and
>> only) males show up beginning early December, then more and more males
>> until some females join them about March or April when courtship and
>> nesting is taken on in earnest. We've been out much of June so haven't
>> visited this month but my highest estimate yet was at least 32 individuals
>> with at least 8 young on May 26. Probably many more since, to keep
>> disturbance to a minimum, we tally moving quickly dodging perched alarming
>> males.
>>
>> *White-throated Swifts: *speculative at this point but this past month
>> we have seen several WTSW from the elevated section of I-280 between Caesar
>> Chavez & the 101 split. Could be that they are nesting in the weep-holes on
>> the under-beneath of the freeway - a well documented breeding adaptation of
>> these aviation specialist.
>>
>> Wishing you many happy discoveries!
>>
>> Eddie Bartley
>>
>
>
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Date: 6/22/25 10:19 pm
From: gene_ggaschat via groups.io <gene_ggaschat...>
Subject: Re: [SFBirds] Southern Waterfront breeding bird miscellany |
>
> *Aqua Vista Park:* About 5 years ago, at some expense and with good
> intentions the Port of SF installed a Caspian Tern "platform" replete with
> tern decoys and audio playback (until the solar panel powering it was
> stolen about a year later). The idea was to replace the dilapidating pier
> that the terns had adopted and successfully bred at for at least a decade
> before it finally collapsed during winter storms. Unfortunately the terns
> never took a liking to the new platform having likely lost their homing
> mechanism in the two (or 3?) years between the old pier collapse and the
> new platform installation. The decoys are still there, most all listing on
> one side now.
>
>
This is very interesting! We walk by aqua vista park almost daily and I have two comments:
1. We saw scores if not a hundred terns on the platform this winter. That doesn’t seem to square with your comments about the terns abandoning the area.
2. After the terns were gone, we still noticed tern-looking shapes on the platform, so one day we finally remembered to bring our binoculars and it seemed like a dozen or so dead terns on the platform. It made us sad. I wondered if they had been struck by bird flu or something. So, I was very heartened to read your comment and learn that they were only decoys!
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Date: 6/22/25 11:26 am
From: Bob Hall via groups.io <bilgepump100...>
Subject: Re: [SFBirds] Southern Waterfront breeding bird miscellany |
Liam repeated, "But, as you note, the aggressive pace of redevelopment in that part of town makes that seem unlikely.”
Yes, unlikely but not impossible. However, SF Rec/Park doesn’t employ a biologist of ecologist so, unfortunately, it’s up to us to let them know what’s going on with wildlife in the city. City managers have a lot of interest groups making requests (dog walkers, pickballers) so WE have to become vocal and not assume that the city knows things that seem obvious to us.
I’m asking that you please send an email to the SF Rec/Park Commission, the Indian Basin project manager, Lauren Dietrich Chavez by email at <lauren.chavez...> (she’s kind of on our side on most issues) and the district Supervisor Walton.
Also in the realm of conservation, state listed Tricolored blackbirds have been seen by Dom at Crocker Amazon Park. I hate lawns but the giant lawn actually is a magnate for blackbirds, flickers, herons, swallows, etc. and is much better for birds than the addition 15 acres of plastic playing fields Rec/Park is proposing.
If someone can survey the park and keep the eBrid list current while we fight the conversion to plastic, please do so. The irrigated, mature trees there are also scheduled for demolition. It’s probably getting late in the season to look for nesting evidence.
If you want to comment on the Crocker Amazon situation, please go to KeepCrockerReal.com
Thanks,
Bob Hall
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Date: 6/21/25 7:39 pm
From: Liam Murphy via groups.io <liammsf...>
Subject: Re: [SFBirds] Southern Waterfront breeding bird miscellany |
Thanks for these notes Eddie!
On my way out to India Basin today, I saw 4 White-throated Swifts flying
quite close to the elevated 280 freeway. Since I was driving and in
traffic, I can't be sure, but the birds were flying in tight proximity, I
did wonder if they might have been pairs or a family group in the proximity
of a nest site somewhere in those overpasses. Definitely interesting!
And by the way, 4 or more Least Terns were once again foraging in the India
Basin around midday. It would be amazing if an area could be protected if
these birds wanted to attempt to establish a colony on this side of the
bay. But, as you note, the aggressive pace of redevelopment in that part of
town makes that seem unlikely.
Good birding, and hoping for more breeding birds in San Francisco!
Liam
On Sat, Jun 21, 2025, 6:34 PM Eddie Bartley via groups.io <eddie=
<naturetrip.com...> wrote:
> Super cool on the first SF breeding record for Blue-gray Gnatcatcher in
> the "re-created" hollow in the Presidio, thanks for sharing that good news
> Dom.
>
> Due to the general lack of open space and pittance of quality habitat on
> the east side of SF (relative to the central ridge and west), breeding of
> birds is much suppressed on this side of town. Also, it appears the ever
> burgeoning Raven and Crow populations have eliminated much in the way of
> backyard songbird breeding compared to 20 years ago. These clever corvids
> are really good at finding nests.
>
> Any bird breeding activity is something to celebrate so I'm adding a few
> seasonal observations from our Southern Waterfront area ramblings for any
> folks interested in this sort of thing.
>
> *Aqua Vista Park:* About 5 years ago, at some expense and with good
> intentions the Port of SF installed a Caspian Tern "platform" replete with
> tern decoys and audio playback (until the solar panel powering it was
> stolen about a year later). The idea was to replace the dilapidating pier
> that the terns had adopted and successfully bred at for at least a decade
> before it finally collapsed during winter storms. Unfortunately the terns
> never took a liking to the new platform having likely lost their homing
> mechanism in the two (or 3?) years between the old pier collapse and the
> new platform installation. The decoys are still there, most all listing on
> one side now. Noreen and I take a look each spring a time or three in
> hopes (though less and less each year) that they will re-establish. So it
> was a fun surprise on two recent visits to see a pair of *BLACK
> OYSTERCATCHERS *take up territory on the platform. One at a time sitting
> for long periods of time as if incubating in the exact same location
> sheltered in part from one of the listing decoys. Quite exposed but who
> knows, might could work. Coincidentally maybe, this is the first year that
> we have not been able to detect Black Oystercatchers making a breeding go
> of it at Heron's Head Park. First noticed an oyster-let there during a
> butterfly survey about 10 years ago on the dilapidating Lashlighter Pier,
> which completed it's collapse about four years ago. Oystercatchers then
> took to breeding on the roof of the Recology recycling center (with many,
> many Western Gulls) which probably made for an ever-greater exciting first
> flight for any surviving oyster-lets. Despite those odds, most years in the
> past ten we've usually seen a young darkish-billed juvenile Oystercatcher
> foraging along the rip-rap at Heron's Head. Nature can be super resilient
> that's for sure!
>
> *Red-winged Blackbirds, India Basin & Pier 94: *another interesting
> breeding adaptation is the apparent move of a breeding colony of RW
> Blackbirds from the very east end of India Basin to Pier 94. Up until the
> early 2010's at least RWBLs nested in a patch of willows until "The
> Shipyard" developer apparently decided those willows must go. Maybe they
> didn't like the occasional campers. Not too long after that, and shortly
> after the uplands portion of Pier 94 was raised with dredged materials and
> planted with some natives, a few RW Blackbirds began attempting to nest in
> the Coyote Brush and Toyon there. We've seen young over the past few years
> but never as many as this year. Per our eBird reports: seems a few (and
> only) males show up beginning early December, then more and more males
> until some females join them about March or April when courtship and
> nesting is taken on in earnest. We've been out much of June so haven't
> visited this month but my highest estimate yet was at least 32 individuals
> with at least 8 young on May 26. Probably many more since, to keep
> disturbance to a minimum, we tally moving quickly dodging perched alarming
> males.
>
> *White-throated Swifts: *speculative at this point but this past month we
> have seen several WTSW from the elevated section of I-280 between Caesar
> Chavez & the 101 split. Could be that they are nesting in the weep-holes on
> the under-beneath of the freeway - a well documented breeding adaptation of
> these aviation specialist.
>
> Wishing you many happy discoveries!
>
> Eddie Bartley
>
>
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Date: 6/21/25 6:34 pm
From: Eddie Bartley via groups.io <eddie...>
Subject: [SFBirds] Southern Waterfront breeding bird miscellany |
Super cool on the first SF breeding record for Blue-gray Gnatcatcher in the "re-created" hollow in the Presidio, thanks for sharing that good news Dom.
Due to the general lack of open space and pittance of quality habitat on the east side of SF (relative to the central ridge and west), breeding of birds is much suppressed on this side of town. Also, it appears the ever burgeoning Raven and Crow populations have eliminated much in the way of backyard songbird breeding compared to 20 years ago. These clever corvids are really good at finding nests.
Any bird breeding activity is something to celebrate so I'm adding a few seasonal observations from our Southern Waterfront area ramblings for any folks interested in this sort of thing.
*Aqua Vista Park:* About 5 years ago, at some expense and with good intentions the Port of SF installed a Caspian Tern "platform" replete with tern decoys and audio playback (until the solar panel powering it was stolen about a year later). The idea was to replace the dilapidating pier that the terns had adopted and successfully bred at for at least a decade before it finally collapsed during winter storms. Unfortunately the terns never took a liking to the new platform having likely lost their homing mechanism in the two (or 3?) years between the old pier collapse and the new platform installation. The decoys are still there, most all listing on one side now. Noreen and I take a look each spring a time or three in hopes (though less and less each year) that they will re-establish. So it was a fun surprise on two recent visits to see a pair of *BLACK OYSTERCATCHERS* take up territory on the platform. One at a time sitting for long periods of time as if incubating in the exact same location sheltered in part from one of the listing decoys. Quite exposed but who knows, might could work. Coincidentally maybe, this is the first year that we have not been able to detect Black Oystercatchers making a breeding go of it at Heron's Head Park. First noticed an oyster-let there during a butterfly survey about 10 years ago on the dilapidating Lashlighter Pier, which completed it's collapse about four years ago. Oystercatchers then took to breeding on the roof of the Recology recycling center (with many, many Western Gulls) which probably made for an ever-greater exciting first flight for any surviving oyster-lets. Despite those odds, most years in the past ten we've usually seen a young darkish-billed juvenile Oystercatcher foraging along the rip-rap at Heron's Head. Nature can be super resilient that's for sure!
*Red-winged Blackbirds, India Basin & Pier 94:* another interesting breeding adaptation is the apparent move of a breeding colony of RW Blackbirds from the very east end of India Basin to Pier 94. Up until the early 2010's at least RWBLs nested in a patch of willows until "The Shipyard" developer apparently decided those willows must go. Maybe they didn't like the occasional campers. Not too long after that, and shortly after the uplands portion of Pier 94 was raised with dredged materials and planted with some natives, a few RW Blackbirds began attempting to nest in the Coyote Brush and Toyon there. We've seen young over the past few years but never as many as this year. Per our eBird reports: seems a few (and only) males show up beginning early December, then more and more males until some females join them about March or April when courtship and nesting is taken on in earnest. We've been out much of June so haven't visited this month but my highest estimate yet was at least 32 individuals with at least 8 young on May 26. Probably many more since, to keep disturbance to a minimum, we tally moving quickly dodging perched alarming males.
*White-throated Swifts:* speculative at this point but this past month we have seen several WTSW from the elevated section of I-280 between Caesar Chavez & the 101 split. Could be that they are nesting in the weep-holes on the under-beneath of the freeway - a well documented breeding adaptation of these aviation specialist.
Wishing you many happy discoveries!
Eddie Bartley
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Date: 6/21/25 8:52 am
From: Liam Murphy via groups.io <liammsf...>
Subject: [SFBirds] Confiding MACGILLIVRAYS WARBLER at Elk Glen |
Singing male, west end of lake, here:
37.767443,-122.482723
Frequently singing from exposed or high perch
Good birding,
Liam Murphy
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Date: 6/19/25 10:54 am
From: Keith Maley via groups.io <keith.maley...>
Subject: [SFBirds] Least Terns cont. - India Basin |
At least 6 foraging here: (37.7343444, -122.3745461) Great close-up views and photo opps- best I’ve had in SF.
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Date: 6/17/25 2:30 pm
From: Dominik Mosur via groups.io <dominikmosur...>
Subject: [SFBirds] First SF record of breeding Blue-gray Gnatcatcher + other breeding/misc. observations |
Hello SFBirders,
Starting with the big news. On June 12th, Margarita Montenegro, field
biologist for the Presidio Trust discovered a still-begging fledgling
Blue-gray Gnatcatcher in the company of an adult in the Tennessee Hollow
area of the Presidio ( YMCA Reach just north of the jct of Presidio Blvd.
and MacArthur,) This establishes the first breeding record for the species
in San Francisco County. It may also be the most coastal breeding record of
Gnatcatcher north of Monterey County. (If anyone is aware of any coastal
breeding records from San Mateo Co. north please let me know.)
Blue-gray Gnatcatchers were present in the area all spring but this was not
a species I expected to ever nest in the City. Their preferred habitat in
the West is typically a mix of dry oak woodland and chaparral away from
the coastal fog belt.
Margarita's checklist can be seen here:
https://ebird.org/checklist/S249551902
In other news, on 6/15, during Mount Sutro point counts I confirmed
breeding Olive-sided Flycatcher. Both adults were frequenting the upper
reach of Woodland Canyon at the junction of the Edgewood and Historic
trails and after some waiting around I observed one of them fly into a nest
with a large insect and carry away a fecal sac. Olive-sided Flycatchers
were present in this same location last summer but I was not able to
confirm nesting. In 2023 they nested in almost the exact spot, using a tree
that is about 10 meters away from this year's nest tree. Both times they
have used a Monterey Cypress. To my knowledge this is the only breeding
Olive-sided flycatcher location in San Francisco for almost a decade since
they last nested on Mount Davidson c 2016-17.
Multiple recently fledged Wilson's Warblers were also present along the
Sutro trails.
The California Gull breeding colony on the Southeast Bayside is also going
strong again this year. Over 1100+ were present yesterday with dozens of
juveniles of various sizes, outnumbering the western gulls by about 4:1.
This site can be observed from the Pier 96 parking lot; the nests are on
the north facing side of the Recology building.
While spring migration has pretty much ended a few birds are still moving
through. This morning in Glen Canyon, (6/17) there was another
ROSE-BREASTED GROSBEAK (10th ? one noted in SF this spring) as well as a
getting late singing Western Tanager.
Yesterday (6/16) I noted the first returning Willet in alternate plumage at
Heron's Head Park and another observer noted (5)together at Crissy Field..
This is a somewhat typical first return date. Per Ron Thorn's notes the
earliest arrival date is 6/9.
On 6/10 the first dispersing hatch-year Orange-crowned Warbler was on
Corona Hill and on 6/14 a couple dozen tardy Cedar Waxwings passed through.
Dominik Mosur
San Francisco
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Date: 6/13/25 8:02 am
From: David Assmann via groups.io <david_assmann...>
Subject: [SFBirds] Gray Catbird |
Gray Catbird found by Asher Perla yesterday on the hillside above the parking lot at Fort Point in San Francisco is still here this morning - heard but not yet seen.
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Date: 6/12/25 10:07 am
From: Daniel Grossman via groups.io <dcpgrossman...>
Subject: Re: [SFBirds] Rose-breasted |
Rose-breasted Grosbeak was singing incessantly today on the island below
Strawberry Hill. If you're at the dam facing the waterfall, take the wide
path down to the right (not the narrower one at the barrier to the falls).
Go 50 yards down the trail to a large overturned stump on the left. He's in
the trees just below and working the trees further along the trail.
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Date: 6/12/25 8:54 am
From: Milo Linaman via groups.io <linamanlearn...>
Subject: Re: [SFBirds] RED-EYED VIREO continues Log Cabin Trail |
[Edited Message Follows]
For what its worth, I've glimpsed the Red-eyed Vireo a couple times in the past few days- recently just this morning- in the Botanical Garden, SE Asian cloud forest. This morning it was in the big flowering Photinia tree, then to the smaller flowering dogwoods down the hill, and now it's gone. It has a loud and distinctive song and it seems like it's quickly foraging through and doesn't stay in one place very long. It seemed to linger in the dogwoods though.
Milo Linaman
Oakland/SF Botanical Garden gardener
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Date: 6/12/25 8:53 am
From: Milo Linaman via groups.io <linamanlearn...>
Subject: Re: [SFBirds] RED-EYED VIREO continues Log Cabin Trail |
For what its worth, I've glimpsed the Red-eyed Vireo a couple times in the past few days- recently just this morning- in the Botanical Garden, SE Asian cloud forest. This morning it was in the big flowering Photinia tree, then to the smaller flowering dogwoods down the hill, and now it's gone. It has a loud and distinctive song and it seems like it's quickly foraging through and doesn't stay in one place very long. It seemed to linger in the dogwoods though.
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Date: 6/10/25 9:56 am
From: Daniel Scali via groups.io <daniel.s.scali...>
Subject: [SFBirds] Northern Parula Log Cabin continuing |
Hey all,
Parula found by Caitlin and someone yesterday morning continues singing consistently from sycamore canopy east of Log Cabin at Log Cabin Trail. I did not locate the Red-eyed Vireo.
Good Doldrums!
Dan Scali
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Date: 6/9/25 11:27 am
From: David Assmann via groups.io <david_assmann...>
Subject: [SFBirds] San Francisco Annual City List through May 2025 |
13 new species were added to the City list for May, bringing us to 233 species, the second lowest annual total through May since 2011. New species for the month were Red-necked Phalarope, Black Swift, Solitary Sandpiper, Lewis's Woodpecker, Cassin's Auklet, Bank Swallow, Blue Grosbeak, Hooded Warbler, Manx Shearwater, Wood Duck, Willow Flycatcher, Rose-breasted Grosbeak, and Grasshopper Sparrow. You can see the full listing at https://sfbirds.net/2025-city-cumulative-list
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Date: 6/7/25 7:56 am
From: Dominik Mosur via groups.io <dominikmosur...>
Subject: [SFBirds] Pine Lake/Stern Grove 6/7/25 |
Nice mix here this morning:
Willow Flycatcher - at the lake
Western Wood-pewee
Warbling Vireo - singing at the lake/getting late
House Wren - adult and two very recently fledged juveniles on hillside below playground
Cedar Waxwings - ~25
Western Tanager
ROSE-BREASTED Grosbeak - around the midway point of the park where wawona dead ends below 26th Ave . This is only a few blocks from McCoppin square so maybe that same bird from last week has moved here.
Plus loads of the other more expected/breeding birds.
Happy Birding,
Dominik Mosur
San Francisco
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Date: 6/6/25 6:50 pm
From: Steve Kaye via groups.io <stevekaye...>
Subject: [SFBirds] Pure white hummingbird on Mount Davidson |
This morning while I was on Mt. Davidson looking for (but not finding) the Rose-breasted Grosbeaks reported earlier by Keith Maley, I spotted something white flying nearby. Bigger than a butterfly, it landed on a bush and turned out to be a beautiful white hummingbird, which I believe was completely white except for a yellow-orange bill (I didn't note the eye color). Very poor iPhone photo attached. It flew off as I approached, around (37.73888, -122.45310). Later I saw it again, I'm pretty sure, flying near (37.73793, -122.45337). Because the bill was light-colored, I believe it must be albino rather than leucistic, and apparently not the same bird as was seen last summer on Mt. Davidson (photo from Dominik of last year's bird: https://macaulaylibrary.org/asset/621577322 ). I don't know whether it's an Anna's or Allen's.
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Date: 6/6/25 5:10 pm
From: Dominik Mosur via groups.io <dominikmosur...>
Subject: Re: [SFBirds] RED-EYED VIREO continues Log Cabin Trail |
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Date: 6/6/25 3:42 pm
From: David Couch via groups.io <dhcouch...>
Subject: Re: [SFBirds] RED-EYED VIREO continues Log Cabin Trail |
I'm originally from the east coast (NYC), and just came back from a May visit to the White Mountains (northern Appalachians):
Red-eyed vireo, Red-eyed vireo, Red-eyed vireo, Red-eyed vireo, Red-eyed vireo, Red-eyed vireo, Red-eyed vireo, Red-eyed vireo, Red-eyed vireo, Red-eyed vireo, Red-eyed vireo, Red-eyed vireo, Red-eyed vireo, Red-eyed vireo,... (that was about 1 minute in the eastern woods)
So last weekend, when walking through OUR woods (Mt Tam) I kept thanking my lucky stars that I was in a place where the trees were full of WARBLING vireos, instead of the unbelievably tiresome, indefatigable, even-more-invisible-than-warbling red-eyed.
But yeah, cool for y'all to see one out here on the west coast.
OTOH, I will not complain about the 19 wood warblers I saw out east.
David Herzstein Couch
Berkeley, CA
________________________________
From: <SFBirds...> <SFBirds...> on behalf of Nancy Palmer via groups.io <nancy_palmer...>
Sent: Friday, June 6, 2025 11:21 AM
To: <dominikmosur...> <dominikmosur...>
Cc: Birds SF <SFBirds...>
Subject: [SFBirds] RED-EYED VIREO continues Log Cabin Trail
The Red-Eyed Vireo found by Dominik continues in a bay tree at the log cabin trail here: 37.7705417, -122.4751041
Best,
Nancy Palmer
SF
> On Jun 5, 2025, at 7:31 AM, Dominik Mosur via groups.io <dominikmosur...> wrote:
>
> Singing away about 100m east of the cabin.
>
> Dominik Mosur
> San Francisco
>
>
>
>
>
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Date: 6/6/25 2:38 pm
From: Dominik Mosur via groups.io <dominikmosur...>
Subject: Re: [SFBirds] Solitary Vireo - Buena Vista Park 6/6/25 |
I just saw some photos obtained in the field of this bird and am leaning
toward drab Cassin's Vireo based on the pattern on the rectrices. The pale
edges don't look nearly as wide in photos as they did in the field.
Sometimes we see what we want to see I guess.
Happy birding and vagrant finding to all,
Dominik
On Fri, Jun 6, 2025 at 12:36 PM Dominik Mosur via groups.io <dominikmosur=
<gmail.com...> wrote:
> The video has moved a bit. It is now in the Oak Grove next to the
> playground in the northwest corner of the park.
>
> For what it’s worth the tertial edges look white in the field at
> relatively close range (>5 m) but Cassin's can be extremely drab this late
> in spring.
>
> DM
> > On Jun 6, 2025, at 12:20, Dominik Mosur via groups.io <dominikmosur=
> <gmail.com...> wrote:
> >
> > A very drab Solitary Vireo is singing away near here:
> >
> > 37.76944, -122.44052
> >
> > Possible candidate for plumbeous but good photos would be needed if
> anyone is up for a challenge.
> >
> > Dominik Mosur
> > San Francisco
> >
> >
> >
> >
> >
>
>
>
>
>
>
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Date: 6/6/25 12:36 pm
From: Dominik Mosur via groups.io <dominikmosur...>
Subject: Re: [SFBirds] Solitary Vireo - Buena Vista Park 6/6/25 |
The video has moved a bit. It is now in the Oak Grove next to the playground in the northwest corner of the park.
For what it’s worth the tertial edges look white in the field at relatively close range (>5 m) but Cassin's can be extremely drab this late in spring.
DM
> On Jun 6, 2025, at 12:20, Dominik Mosur via groups.io <dominikmosur...> wrote:
>
> A very drab Solitary Vireo is singing away near here:
>
> 37.76944, -122.44052
>
> Possible candidate for plumbeous but good photos would be needed if anyone is up for a challenge.
>
> Dominik Mosur
> San Francisco
>
>
>
>
>
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Date: 6/6/25 12:20 pm
From: Dominik Mosur via groups.io <dominikmosur...>
Subject: [SFBirds] Solitary Vireo - Buena Vista Park 6/6/25 |
A very drab Solitary Vireo is singing away near here:
37.76944, -122.44052
Possible candidate for plumbeous but good photos would be needed if anyone is up for a challenge.
Dominik Mosur
San Francisco
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Date: 6/6/25 12:05 pm
From: Alan Hopkins via groups.io <alanhopkins...>
Subject: [SFBirds] Farallon webcam bird |
Hi everyone. Looks like there are birds out there to be seen! I checked the Farallon Webcam lighthouse the first warbler I've seen appeared at 11:45, unfortunately I was able to ID it. They have changed the lens on the camera that is more wide-angle so when birds appear they look smaller. Also, a wire the birds liked to perch on is gone. The good news is that the resolution seems higher than before. I tried to check the lighthouse view again but the camera seems stuck on a distant view.
See some real birds!
Alan S. HopkinsSan Francisco, CALink to art website
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Date: 6/6/25 11:22 am
From: Nancy Palmer via groups.io <nancy_palmer...>
Subject: [SFBirds] RED-EYED VIREO continues Log Cabin Trail |
The Red-Eyed Vireo found by Dominik continues in a bay tree at the log cabin trail here: 37.7705417, -122.4751041
Best,
Nancy Palmer
SF
> On Jun 5, 2025, at 7:31 AM, Dominik Mosur via groups.io <dominikmosur...> wrote:
>
> Singing away about 100m east of the cabin.
>
> Dominik Mosur
> San Francisco
>
>
>
>
>
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Date: 6/6/25 11:13 am
From: Peter Pyle via groups.io <ppyle...>
Subject: [SFBirds] Still a few spaces on June 15th Noyo pelagic trip |
Greetings Bay Area -
We still have a few spaces on our full-day trip Sunday June 15th from
Noyo Harbor, Fort Bragg, and there is also room on the half-day trip the
following Monday. It's a bit far out to rely on the weather forecast,
but currently it's looking great for both days, NW winds of 10 knots or
so, just enough to get the albatross and Pterodroma petrels moving around.
https://noyopelagics.com/
Speaking of the latter, we have submitted our "Pterodroma sp." from May 24th
https://ebird.org/checklist/S242257377
to the CBRC as a Herald Petrel. Thus far there are reasoned arguments
from pelagic experts for both this and for a hybrid Herald x Murphy's
Petrel. We are awaiting comment from Hadoram Shirihai, who was looking
at the photos while at AMNH with drawers of Pterodroma open, and should
be able to provide a definitive word. In ether case we wanted to archive
the record with the CBRC. For those daring to go weeding on this
subject, check out this recent paper:
https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2023.1123288/full
A reminder that this bird, 15 Murphy's Petrels, a Hawaiian Petrel,
dozens of Black-footed Albatrosses, Laysan Albatross, shearwaters, Ashy
Storm-Petrels, and Sabine's Gulls were all observed on a half-day trip
just 5-6 nautical miles from the coast. Consider going on both the
Sunday and Monday trips as, typical of pelagic birding, consecutive days
can be quite variable in the productive Noyo Canyon.
Cheers, Peter
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Date: 6/6/25 10:34 am
From: Daniel Scali via groups.io <daniel.s.scali...>
Subject: [SFBirds] MAGNOLIA WARBLER |
Adult male at East Wash. You can stand around here and hear it singing.
(37.7869918, -122.5010951)
Might need to bushwhack if it keeps moving around.
Dan
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Date: 6/6/25 8:48 am
From: Keith Maley via groups.io <keith.maley...>
Subject: [SFBirds] More Rosebeaks - Mt. D |
Two female Rose-breasted Grosbeaks together eating elderberry and squeaking, east side slope: (37.7387752, -122.4526624)
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Date: 6/5/25 7:31 am
From: Dominik Mosur via groups.io <dominikmosur...>
Subject: [SFBirds] RED-EYED VIREO Log Cabin Trail /GGP 6/5/25 |
Singing away about 100m east of the cabin.
Dominik Mosur
San Francisco
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