Hi David,
You bring up a good point regarding the Yellow Grosbeak(s)? in Colorado, which have now been documented in four counties(!). There has been a spate of unusual sightings of birds in Colorado recently including Black-bellied Whistling Duck and Anhinga in Boulder County; Hooded Oriole in Gunnison County; Lawrence's Goldfinch in Huerfano County; Cactus Wren in Otero County; Cocos Booby in Baca County; Crested Caracara in Pueblo County; Black-chinned Sparrow in Montezuma County; and just today, Tropical Kingbird in Arapahoe County. Wow!
Reporting sightings like these to the Colorado Bird Records Committee ensures that they will receive careful scrutiny as part of a rigorous peer review process including discussion regarding providence, which takes into account the possibility that birds may have escaped from captivity. When the CBRC accepts a record, it becomes part of the state's official list and is archived within the Denver Museum of Nature and Science. The online reporting process is fairly easy and well worth the effort!
Best,
Peter Burke
On Mon, Jun 30, 2025 at 11:55 AM Steingraeber,David <David.Steingraeber@colostate.edu> wrote:
--Apparently, Yellow Grosbeaks are known to be kept as cage birds. In Rare Birds of North America by Howell, Lewington & Russell, the authors state, "Because yellow grosbeaks are kept in captivity (Hamilton 2001), extralimital records in both time and space are open to question." They then give several examples where various state records committees have not accepted extralimital occurrences, as well as cases where such occurrences have been accepted. They end their discussion of the topic with this: "Observers should not assume that extralimital records of this species are escaped cage birds, and all such occurrences should be carefully documented."
David SteingraeberFort Collins
From: cobirds@googlegroups.com <cobirds@googlegroups.com> on behalf of Susan Rosine <u5b2mtdna@gmail.com>
Sent: Sunday, June 29, 2025 9:02 PM
To: Colorado Birds <cobirds@googlegroups.com>
Subject: Re: [cobirds] Yellow Grosbeak (Larimer) - just wondering...** Caution: EXTERNAL Sender **
To my knowledge, they are not at all suitable to be a pet/caged bird. Someone please correct me if I'm wrong.
Susan RosineBrighton
On Sun, Jun 29, 2025, 8:31 PM John Shenot <johnshenot@gmail.com> wrote:I was pleased to have the chance to see the Yellow Grosbeak in Estes Park today. Even so, I find myself wondering if anyone on this group has considered (perhaps privately?) that it might be an escaped cage bird? How would one know? Given that this bird is a solid 1,000 miles out of range, without any obvious weather phenomenon to explain its presence, is it unreasonable for me to wonder?
Not trying to rain on anyone's parade, sorry if it comes across that way. I'm just a curious guy...
John ShenotFort Collins--
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