Date: 1/17/25 8:31 am From: Mike Britten <mikebritten25...> Subject: Re: [cobirds] Status of Yellow-billed Loons in Colorado
The Birds of the World account for the yellow-billed loon (latest version
published in 2020) includes this:
"A recent phenomenon (beginning in the 1980s) has been the accumulation of
records of Yellow-billed Loons migrating and wintering well inland in North
America. Although some inland sightings were questioned by Phillips (33),
there have been photographically documented records for such inland areas
as interior British Columbia, eastern Washington, Idaho, Montana,
Minnesota, Illinois, Nevada, Utah, Colorado, Oklahoma, Arkansas, Arizona,
New Mexico, and western Texas, as well as careful sight records for
Missouri and elsewhere (records from North American Birds, eBird). Many of
these records were from artificial reservoirs that represent new potential
habitat for this species. The recent discovery of these birds, however,
probably stems from new information on field identification of loons in
basic plumage that has only recently become widely available."
And this:
"In general, individuals breeding in northern Alaska fly through the Bering
Strait and winter off the coast of Asia, while those in central Canada fly
south overland and winter off the Pacific coast of North America. Those
breeding on the Seward Peninsula and in northern Canada, winter in both
places."
On Fri, Jan 17, 2025 at 8:50 AM Mary Geder <mfg5000...> wrote:
> And then there was the June YBL at McClellan Reservoir.
> Mary Geder
> Jefferson Co
> Sent from my iPhone
>
> On Jan 17, 2025, at 8:47 AM, Peter Gent <gent...> wrote:
>
>
> All,
>
> The CBRC has 35 records of Yellow-billed Loon, which can be seen at
> https://cobrc.org/Reports/SpeciesDetail.aspx?id=59 >
> There were 3 records in 2018, 3 in 2020, and 2 in 2022. There were about
> 5 birds in CO in late 2024, so that does seem to be an increase in the
> maximum number of birds in winter and well above average. These birds were
> seen at Pueblo Res, Cherry Creek Res, Chatfield Res, Union Res and Boyd
> Lake. These are places that have been well birded over many years, so this
> number does seem rather unusual. What was unprecedented was that a bird
> spent all of last summer in south Denver mostly at McClellan Res. Does this
> mean that the species has increased in numbers recently or is breeding
> further east than before? I do not know the answers to these questions.
>
> Cheers, Peter Gent.
> Chairman CBRC.
>
> On Thu, Jan 16, 2025 at 5:17 PM Robert Righter <rorighter...>
> wrote:
>
>> Hi All
>>
>> In 1992 with the publication o Colorado Birds, the Yellow-billed Loon
>> was considered a casual fall migrant (5 records) and winter resident (4
>> records). According to this winter’s eBird reports there has been multiple
>> sightings, at multiple reservoirs. Something is going on with the
>> Yellow-billed Loon. Could they be having more successful breeding in the
>> arctic (if so why) thus significantly more YBLO are moving south in the
>> winter? Usually there isn’t just one reason to explain phenomenon, but
>> multiply inter-connected reasons.
>>
>> Anyone have any ideas!
>>
>> Bob Righter
>> Denver, CO
>>
>>
>>
>>
>>
>>
>> --
>> --
>> You received this message because you are subscribed to the Google Groups
>> "Colorado Birds" group.
>> To post to this group, send email to <cobirds...>
>> For more options, visit this group at
>> http://groups.google.com/group/cobirds >> * All posts should be signed with the poster's full name and city.
>> Include bird species and location in the subject line when appropriate.
>> * Join Colorado Field Ornithologists https://cobirds.org/membership/ >> ---
>> You received this message because you are subscribed to the Google Groups
>> "Colorado Birds" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to cobirds+<unsubscribe...>
>> To view this discussion visit
>> https://groups.google.com/d/msgid/cobirds/<2C88C1B7-BD32-4DE8-895E-A64B5AA122FF...> >> .
>>
> --
> --
> You received this message because you are subscribed to the Google Groups
> "Colorado Birds" group.
> To post to this group, send email to <cobirds...>
> For more options, visit this group at
> http://groups.google.com/group/cobirds > * All posts should be signed with the poster's full name and city. Include
> bird species and location in the subject line when appropriate.
> * Join Colorado Field Ornithologists https://cobirds.org/membership/ > ---
> You received this message because you are subscribed to the Google Groups
> "Colorado Birds" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to cobirds+<unsubscribe...>
> To view this discussion visit
> https://groups.google.com/d/msgid/cobirds/CADEFvCd_UoF1JfYXBh2UT0dY2OE%3D1OMZo44EREndi%<3Dt-koFMyA...> > <https://groups.google.com/d/msgid/cobirds/CADEFvCd_UoF1JfYXBh2UT0dY2OE%3D1OMZo44EREndi%<3Dt-koFMyA...>?utm_medium=email&utm_source=footer> > .
>
> --
> --
> You received this message because you are subscribed to the Google Groups
> "Colorado Birds" group.
> To post to this group, send email to <cobirds...>
> For more options, visit this group at
> http://groups.google.com/group/cobirds > * All posts should be signed with the poster's full name and city. Include
> bird species and location in the subject line when appropriate.
> * Join Colorado Field Ornithologists https://cobirds.org/membership/ > ---
> You received this message because you are subscribed to the Google Groups
> "Colorado Birds" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to cobirds+<unsubscribe...>
> To view this discussion visit
> https://groups.google.com/d/msgid/cobirds/<PH0PR84MB3000B768B21FD0DAA2748CFBCA1B2...> > <https://groups.google.com/d/msgid/cobirds/<PH0PR84MB3000B768B21FD0DAA2748CFBCA1B2...>?utm_medium=email&utm_source=footer> > .
>
--
--
You received this message because you are subscribed to the Google Groups "Colorado Birds" group.
To post to this group, send email to <cobirds...>
For more options, visit this group at
http://groups.google.com/group/cobirds * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate.
* Join Colorado Field Ornithologists https://cobirds.org/membership/ ---
You received this message because you are subscribed to the Google Groups "Colorado Birds" group.
To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+<unsubscribe...>
To view this discussion visit https://groups.google.com/d/msgid/cobirds/CALVSejHRCm8y33QMCctdtj74f457T_YD%2BpTrrDmFz%3DVWV4%<2BerA...>
