Date: 5/20/26 10:14 am From: Leith McKenzie <00001c0b99ee6c7e-dmarc-request...> Subject: Re: [BIRDWG01] Falcon in CO
I suspect Bob is right. My theory of the bird would be HY tiercel Peregrine. I think HY because of the white on the face reaching up to the eye. Also, the long sit on the ground perhaps seems consistent with a recent departure from its nest. As to size, male peregrines are known to be about 2/3rds the size of females.
“Each of us is in truth an idea of the Great Gull and an unlimited idea of freedom.”
Jonathan Livingston Seagull
On Tuesday, May 19, 2026 at 07:36:13 PM PDT, Robert O'Brien <00001bb3f9cc1f1f-dmarc-request...> wrote:
On Tue, May 19, 2026 at 6:52 PM Rachel Hopper <hopkohome8...> wrote:
> This falcon was photographed in Weld County, CO today. In the 15 minutes
> the observer watched it, it did not move from the ground.
>
> It has been suggested that it might be an Eurasian Hobby as it does not
> really fit either of the expected Peregrine or Prairie.
>
> Comments would be appreciated.
>
> Photos can be seen here: https://www.rkhphotography.net/Falcon >
> -----------------------
> Rachel Kolokoff Hopper
> <hopkohome8...>
> Ft. Collins, CO
>
> Archives: https://listserv.ksu.edu/birdwg01.html >
