Date: 12/10/25 11:42 am
From: Mike Britten <mikebritten25...>
Subject: [cobirds] Help with hybrid(?) goose identification
Folks,

I birded at Union Reservoir near Longmont this morning. There were
thousands of geese (along with 22 bald eagles looking for an easy meal).
Mostly they were cackling geese but a few snow geese (including a dark
morph), a couple of Ross' geese (including a dark morph bird but I'm not
sure it is a pure Ross' goose?) and one greater white-fronted goose were
also there.

There were also a few puzzling (to me) hybrids. I wonder if anyone has
thoughts as to what these might be? Photos include in the checklist.

Mike Britten

checklist: https://ebird.org/checklist/S288035287

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