Sunday, 8 November 2020

[cobirds] Re: Standley Lake (Jeffco) - A study in loons and a couple RNGR

Here are the Red-necked Grebe pics. I'm curious if more experienced birders know if the bill size difference is just variation in adults in basic plumage, or if one might be a first winter.

DSTU0573 - RNGR.JPGDSTU0588 - RNGR2 best.JPG

DSTU0635 - RNGR both best.JPG



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