| EBB-Sightings |
| Received |
From |
Subject |
| 6/6/26 3:19 pm |
SteveLombardi via groups.io <hotrock175...> |
Re: [EBB-Sightings] Central Contra Costa co. breeding bird notes |
| 6/5/26 3:20 pm |
Whitney via groups.io <wlgrover...> |
[EBB-Sightings] CA Bird Atlas - Alameda County Update and Needs List |
| 6/4/26 11:02 am |
Dominik Mosur via groups.io <dominikmosur...> |
[EBB-Sightings] Central Contra Costa co. breeding bird notes |
| 5/31/26 9:13 pm |
ireddy via groups.io <ireddy...> |
[EBB-Sightings] Female Vermilion Flycatcher |
| 5/30/26 7:18 pm |
Ethan Monk via groups.io <z.querula...> |
Re: [EBB-Sightings] Some possible breeding |
| 5/30/26 7:17 pm |
Ethan Monk via groups.io <z.querula...> |
[EBB-Sightings] Some possible breeding |
| 5/30/26 2:32 pm |
Joe Morlan via groups.io <jmorlan...> |
Re: [EBB-Sightings] Swinhoe�s White-eyes in Alameda |
| 5/30/26 11:04 am |
Chris Waterman via groups.io <chriswaterman555...> |
[EBB-Sightings] Swinhoe’s White-eyes in Alameda |
| 5/26/26 4:56 pm |
Claude Lyneis via groups.io <cmlyneis...> |
[EBB-Sightings] Osprey over Stege Marsh Richmond |
| 5/25/26 6:05 pm |
apicciotto2005 via groups.io <apicciotto...> |
[EBB-Sightings] I Don't Believe AI |
| 5/23/26 10:40 pm |
JENNIFER FURY via groups.io <jennyfuzzy...> |
Re: [EBB-Sightings] Common Loon Ballena Bay Alameda |
| 5/23/26 6:49 pm |
amrybarczyk via groups.io <amrybarczyk...> |
[EBB-Sightings] Common Loon Ballena Bay Alameda |
| 5/21/26 6:02 pm |
Chuck Dresel via groups.io <cfdresel...> |
[EBB-Sightings] Humboldt Pelagic needs a few more sign-ups! |
| 5/21/26 1:30 pm |
Alan Krakauer via groups.io <Alan.krakauer...> |
[EBB-Sightings] Swainson's Hawk, Wildcat Canyon |
| 5/19/26 2:31 pm |
Zac Denning via groups.io <zdenning1...> |
Re: [EBB-Sightings] A Purple Finch? |
| 5/19/26 2:26 pm |
Claude Lyneis via groups.io <cmlyneis...> |
Re: [EBB-Sightings] A Purple Finch? |
| 5/19/26 2:05 pm |
Roger Lambert via groups.io <roglamb...> |
Re: [EBB-Sightings] A Purple Finch? |
| 5/19/26 1:41 pm |
Claude Lyneis via groups.io <cmlyneis...> |
[EBB-Sightings] A Purple Finch? |
| 5/19/26 1:31 pm |
Zac Denning via groups.io <zdenning1...> |
[EBB-Sightings] Visible migration in Albany Today |
| 5/15/26 11:45 am |
<tonybrake...> via groups.io <tonybrake...> |
[EBB-Sightings] Nesting terns on Richmond Breakwater |
| |
Date: 6/6/26 3:19 pm
From: SteveLombardi via groups.io <hotrock175...>
Subject: Re: [EBB-Sightings] Central Contra Costa co. breeding bird notes |
Referencing Dom's great post here: Just a comment about quail in San Ramon.
We had lots of quail in our neighborhood in east San Ramon for 20 years with several breeding families in our yard every season.
Their numbers declined starting in 2018 and have now almost completely disappeared from our yard and the neighborhood in general, although they're still around in the adjoining open space.
There have been no obvious changes to the habitat in that time, so we're puzzled by the decline.
Predators? We've always had outdoor cats, skunks, raccoons, and coyotes, but recently the bobcat numbers seem to have increased (we have them in our backyard pretty regularly).
OTOH, for a bit of good news: A Cooper's Hawk is sitting on a nest in a tree in an office parking lot in the middle of town. Go, girl.
Steve
San Ramon
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Date: 6/5/26 3:20 pm
From: Whitney via groups.io <wlgrover...>
Subject: [EBB-Sightings] CA Bird Atlas - Alameda County Update and Needs List |
Day 1 of the CA Bird Atlas Big Weekend covered 13 blocks and added 8 new
atlasers in Alameda!
[image: summary_day1_alameda.png]
Below are the species without a confirmation code in Alameda County, but
with probable codes observed in May/June. Locations of most recent probable
observations listed, but check out the species explore map
<https://ebird.org/atlascalifornia/map/> for more information and the
reported possible observations. Think outside the box! Where is there
suitable habitat for these species in areas not commonly birded.
- Northern Shoveler - Coyote Hills and San Leandro Bay
- American Wigeon - Pacific Commons Linear Park and San Leandro Bay
- Green-winged Teal - Coyote Hills
- Redhead - Hayward Shoreline Interpretive Center
- Greater Scaup - San Leandro Bay Arrowhead Marsh (copulation!)
- Lesser Scaup - Hayward Shoreline just north of Interpretive Center
- Hudsonian Whimbrel - Hayward Shoreline Interpretive Center
- Eared Grebe - Valle Vista and Hayward Shoreline Interpretive Center
- Western Grebe - Lago Los Osos - Quarry Lakes Regional Park and Del
Valle
- American Bittern - Coyote Hills
- Swainson's Hawk - Tesla Rd. in Altamont SE block (pair back on 4/13)
- Northern Flicker - Redwood Regional Canyon Meadow
- Ash-throated Flycatcher - Del Valle Sailor Camp Trail
- Yellow-billed Magpie - Ohlone Wilderness, Mines Rd., and Tesla Rd.
(but back in March)
- Lawrence's Goldfinch - Mines Road Coral pullout (but not since 4/18)
- Lark Sparrow - Mission Peak (back in April)
- MacGillivray's Warbler - Mendenhall Road
- Lazuli Bunting - Pleasanton Ridge and Garin (possible only so far)
Other challenging needs:
- Belted Kingfisher
- Cassin's Kingbird
- Turkey Vulture
- Virginia Rail
- Sora
- Black Rail
- Pigeon Guillemot - seen around the port operations from John Sutter
- Western Wood-Pewee
- Cassin's Vireo
- Varied Thrush
- Swainson's Thrush
- Bell's Sparrow
- Lincoln's Sparrow
- Northern Pygmy-Owl
- Northern Saw-whet Owl
- Western Screech-Owl
Good luck!!!
Whitney
<bayarea...>
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Date: 6/4/26 11:02 am
From: Dominik Mosur via groups.io <dominikmosur...>
Subject: [EBB-Sightings] Central Contra Costa co. breeding bird notes |
Inspired by Ethan Monk's post about breeding birds in Contra Costa county I
wanted to share some observations of the same nature from the past couple
of days in San Ramon, Mount Diablo State Park and Las Trampas Regional
Wilderness.
Breeding observations I found notable were as follows:
California Quail - while still a relatively common breeding species in
suitable habitat of undeveloped parts of the county, our state bird has
declined dramatically in many segments of the Wildland - Urban Interface so
I was very pleased on 5/31 to note a pair of adults shepherding (14) small
chicks along the Twin Creeks Trail in San Ramon (which runs between two of
the more busy thoroughfares of that city, San Ramon Valley Blvd and
Bollinger Canyon Rd.)
Band-tailed Pigeon - a pair were constructing a nest in a backyard
ornamental maple along the Twin Creeks Trail 5/31
Golden Eagle - an adult was flying around in the vicinity of a nest that
was used in 2024 along Bollinger Canyon Rd/Las Tramps, however no activity
was observed at the nest
Blue-gray Gnatcatcher - adults were feeding fledglings near Rock City in
Mount Diablo State Park 5/31 and on Trampas Ridge 6/1
Phainopepla - singing near the Elephant Rock Picnic Area in Rock City/Mount
Diablo SP 5/31
Lawrence's Goldfinch - a singing male was moving around together with a
female at the same location as the Phainopepla 5/31.
Bell's Sparrow - a group of four moving around together in the Chamise near
The Pines Day Use Area on Mount Diablo 6/1. I suspect this was a family
group but in typical Bell's Sparrow fashion they wouldn't cooperate for
better study
a trip report with associated checklists can be viewed here:
https://ebird.org/tripreport/532425
Happy Atlasing,
Dominik Mosur
San Francisco
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Date: 5/31/26 9:13 pm
From: ireddy via groups.io <ireddy...>
Subject: [EBB-Sightings] Female Vermilion Flycatcher |
Hello everyone,
I found an immature female Vermilion Flycatcher in the Ken Mercer Sports park this afternoon, in Pleasanton. It is interesting to note that this bird was in the same area of this very large municipal park as the one I saw back in 2020. The bird was very cooperative, I could basically stand just below the branch it was one and it ignored me. Here are the coordinates where it was this afternoon 37.68038° N, 121.89464° W
It will be interesting to see if it sticks around like the male found in Alameda Creek did.
Here are photos and a video on my ebird https://ebird.org/atlascalifornia/checklist/S350566876
On a different note, for those of you doing the California Breeding Bird Atlas (through ebird), I also found two fledglings Brown Crepeers. It is my first time seeing young ones so I welcome your feedback - I posted an explanation of how I came up to the conclusion that they were young birds and also added photos and a short video to my listing.
Happy birding,
Isabelle
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Date: 5/30/26 7:17 pm
From: Ethan Monk via groups.io <z.querula...>
Subject: [EBB-Sightings] Some possible breeding |
I spent most of my day trying to do cleanup work for the California
Breeding Bird Atlas. A couple of highlights to keep any eye on:
One male Black-throated Gray Warbler was singing vigorously in Redwood
Regional Park, apparently on territory, at the intersection of the Prince
and East Ridge Trails. This is very late for a spring migrant of this
species. Late singing birds are found every couple of years in Contra
Costa, but confirmed breeding records are few and far between. I am not
sure breeding has been confirmed for this species since Kevin Hintsa
confirmed them feeding young at Pine Canyon in the 90s. A number of singing
birds have been found over the years close by at Upper San Leandro
Reservoir, and I'd guess the species is nesting regularly in this part of
the county albeit in very low numbers.
One pair of Black Skimmer spent almost an hour this afternoon chasing
around a third, lone Black Skimmer on Brooks Island. The only place this
species has been found nesting in Contra Costa County is here (and I think
only once, in 2004, although a pair was present through the summer of
2017...), and these birds should be watched. Interestingly though, the
pair kept landing in the same spot... in the California Gull colony? I
would have expected they would prefer the terns. Skimmers first nested in
the Bay Area in 1994, and this very robust Caspian Tern breeding colony has
long seemed a natural place for them to nest, but they just won't do it.
Speaking of Brooks, the Elegant numbers are way down here, but it looks
like maybe 50-60 are still sitting on scrapes and attending nests. We will
see if there are young soon. But the Caspian Terns seem to be doing fine,
with over 300 counted today (and no downy young yet).
I have been scanning the scoters that summer on Brooks Island recently,
like I do every summer looking for something unusual. Nothing last week,
when I counted 72 Surf and 1 Ruddy Duck, but today I counted 73 Surf, 3
Ruddies, and 4 Red-breasted Mergansers!
Lastly, I counted 8 Pacific Wrens on ~1 mile of Pinehurst Rd. this morning,
including one calling bird with a small tuft of down and a big yellow gape!
Best
Ethan Monk
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Date: 5/30/26 2:32 pm
From: Joe Morlan via groups.io <jmorlan...>
Subject: Re: [EBB-Sightings] Swinhoe�s White-eyes in Alameda |
Very nice! This species has been added to the California list as an
established introduced species.
https://www.californiabirds.org/default.asp
Countability in Alameda was not determined.
On Sat, 30 May 2026 11:04:12 -0700, "Chris Waterman via groups.io"
<chriswaterman555...> wrote:
>I saw 2 adults and 2 juveniles in Alameda this morning. Photos included in the checklist. Very vocal and active. Willow st and Eagle Ave.
>eBird Checklist - 30 May 2026 - Willow and Eagle, Alameda CA - 1 speciesebird.org
>
>
>Happy birding!
>Chris Waterman Alameda, CA
--
Joseph Morlan, Pacifica, CA
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Date: 5/25/26 6:05 pm
From: apicciotto2005 via groups.io <apicciotto...>
Subject: [EBB-Sightings] I Don't Believe AI |
A bird that appears to be a Raven (I think) started feeding at my suet platform a couple of days ago. It has a distinctly yellowish beak as seen in the enclosed image, which I sent to AI. AI responded with this:
This is a phenomenal photo that clearly confirms your 40 years of birding intuition—that is unmistakably a majestic Common Raven ( Corvus corax ) with a genuinely pale, yellowish horn-colored beak.
Given your location in California, seeing an individual like this is an extraordinary, once-in-a-lifetime yard observation.
Ideas are welcomed.
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Date: 5/23/26 10:40 pm
From: JENNIFER FURY via groups.io <jennyfuzzy...>
Subject: Re: [EBB-Sightings] Common Loon Ballena Bay Alameda |
Interesting, they are just so beautiful. Cheers,Jennifer Fury Saltwater is the cure for everything, sweat, tears, or the sea 🌊Â
-------- Original message --------From: "amrybarczyk via groups.io" <amrybarczyk...> Date: 5/23/26 6:49 PM (GMT-08:00) To: <EBB-Sightings...> Subject: [EBB-Sightings] Common Loon Ballena Bay Alameda Hello!  Spotted a common loon today in Bellena Bay, west of Doug Siden Visitor Center, about 10am, in breeding colors!  I didn’t think they were around this time of year. Â
Â
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Date: 5/23/26 6:49 pm
From: amrybarczyk via groups.io <amrybarczyk...>
Subject: [EBB-Sightings] Common Loon Ballena Bay Alameda |
Hello!  Spotted a common loon today in Bellena Bay, west of Doug Siden Visitor Center, about 10am, in breeding colors!  I didn’t think they were around this time of year.
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Date: 5/21/26 6:02 pm
From: Chuck Dresel via groups.io <cfdresel...>
Subject: [EBB-Sightings] Humboldt Pelagic needs a few more sign-ups! |
Bird Friends,
Rob Fowler up in Humboldt has organized a pelagic trip for Monday May 25th (Memorial Day). The trip needs a couple more sign-ups to go. Email Rob if you are interested ( <migratoriusfwlr...> )
Here are the details from Rob:
Hi all,
Whelp it seems like the 3rd time is a charm?! This is the third reschedule I have made for my May pelagic and it looks like the weather might actually be favorable this time around!
I still have 4 spots that need to be filled to make this trip a go. Usual price $165/per person and $135/student.
Hawaiian Petrels have been seen from shore a few times from Monterey lately and Manx Shearwater has been seen daily down there, too. On the May 9th Cal Poly pelagic we had two Manx together. And, just as a reminder that trip had over 100+ Murphy's Petrels! That big pink-billed albatross is still on the menu, too!
Anyways, hit me up ASAP if you would like one of the four spots to make this trip a go!
Thanks,
Rob
Rob Fowler
McKinleyville, CA
--
Chuck Dresel
Napa, CA
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Date: 5/21/26 1:30 pm
From: Alan Krakauer via groups.io <Alan.krakauer...>
Subject: [EBB-Sightings] Swainson's Hawk, Wildcat Canyon |
Just back from a GGBA Field Trip walk in northwest Wildcat Canyon. We got
good looks at a light morph Swainson's Hawk circling in the area of the
Belgum sanitarium and then heading more or less up the canyon towards
Tilden/Berkeley. This was around noon today. I believe this is the first
time I have seen one in the East Bay hills. Second new bird in as many
weeks, the first being the Northern Parula in Alvarado Park last week.
Our walk followed a loop from the Alvarado Staging Area parking lot up
Wildcat Creek Trail, up the Belgum Trail to the top of the ridge and back
towards Monte Cresta/Bonita Trail and back down to the parking lot.
Other highlights included at least 5 singing Grasshopper Sparrows, at least
a half-dozen singing Lazuli Buntings, several calling Ash-throated
Flycatchers, and a few Hooded Orioles. Near the top of the ridge we had a
meadowlark and flyover flicker which seemed borderline late to me although
I haven't checked the bar charts in eBird. We also had all 5 common
swallows together along the ridge near the Monte Cresta water tanks.
Good birding,
Alan Krakauer
Richmond, CA
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Date: 5/19/26 2:31 pm
From: Zac Denning via groups.io <zdenning1...>
Subject: Re: [EBB-Sightings] A Purple Finch? |
Hi Claude,
This is a House Finch. The bill looks large because it’s partly open with a
seed wedged in it.
Male Purple Finches have more extensive diffuse pink tinting on the upper
and lower parts, including the flanks and feather edges on the wings and
tail, and usually a darker ‘cheek’ patch. The dark belly/flank streaks in
Purple Finch tend to be more blurry and diffuse, with usually a pink rather
than white background color.
I hope that helps,
Zac Denning
Albany
On Tue, May 19, 2026 at 1:41 PM Claude Lyneis via groups.io <cmlyneis=
<gmail.com...> wrote:
> I was sorting out my camera focusing settings in the backyard yesterday
> and thinking the bird on the feeder was one of the many House Finch, who
> come by. However, the bill on this one looked too big. It looks too big
> for a Purple Finch also, but the markings match.
>
> Here are three shots on Flickr including its mate.
>
> [image: 55281402864_e91038e991_c.jpg]
>
> Purple Finch Oversized Bill <https://flic.kr/s/aHBqjCUpg5>
> flic.kr <https://flic.kr/s/aHBqjCUpg5>
> <https://flic.kr/s/aHBqjCUpg5>
>
> Claude Lyneis
> <cmlyneis...>
> https://www.youtube.com/bhsvideodad
> Flickr Photos at https://flic.kr/ps/36it5P
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
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Date: 5/19/26 1:31 pm
From: Zac Denning via groups.io <zdenning1...>
Subject: [EBB-Sightings] Visible migration in Albany Today |
During my morning yard and sky watch in front of my house in central Albany
today, there was a nice showing of migrants, with movement likely boosted
by the combo of warm weather and a gentle N to NE breeze.
The moment I walked outside, there was a Western Warbling Vireo singing up
the street (perhaps my 3rd yard record). Over the course of the next hour
and a half, I saw 5 Western Tanagers fly by, heading N to NE (at least 3
male, one female), sometimes in duos, with one male perching at the top of
my backyard redwood and singing a few times. Others gave their "weee"
flight calls. I believe this was a yard high count for this species. My
personal highlight was a first-for-the-yard Cassin's Vireo, that seemed to
magically appear near the top of my backyard redwood (visible from the
street in front of my house), nicely sunlit. It stayed for a few seconds
before moving on to the NE.
Most of these migrants were quiet and not super obvious, but today was one
of the better migrant pushes I've experienced from my tightly packed urban
residential neighborhood. My yard / sky watches tend to be somewhat
reflective of what's happening generally, so I wasn't surprised to hear
reports from Vollmer Peak this morning and yesterday morning of a nice
variety of migrants / rarities, plus a variety of reports from San
Francisco.
Happy spring birding,
Zac Denning
Albany
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Date: 5/15/26 11:45 am
From: <tonybrake...> via groups.io <tonybrake...>
Subject: [EBB-Sightings] Nesting terns on Richmond Breakwater |
Like Forrest, we were wondering if Elegant Terns would be nesting this season on the Richmond Breakwater.. Although some had been appearing at various locations along the breakwater, there didn't seem to be a consistent group where they had nested last year near the Caspian Terns that have nesting here for some years. However, over the last week they began increase in the area of previous year's nesting as well as at another location near Brooks Island. Yesterday we took the Richmond-SF ferry to get a better look and some photos to confirm. Using the photos I made an estimate of 1800 Elegant Terns and 180 Caspian Terns. These are conservative counts due to the tightly packed groups with the two species intermingled. There was the usual large California Gull colony along with a Western Gulls nesting along the breakwater as well as one of the channel markers. Here is an eBird checklist with some photos from the return leg of our trip: https://ebird.org/atlascalifornia/checklist/S339086855
I believe this must be the northernmost Elegant Tern nesting colony. I understand that they have been nesting in the South Bay and at Alameda since about 2019.
Tony Brake
Point Richmond
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