Saturday, December 24, 2011

Orbital rings

Western GullWestern Gull, Beaverton, Oregon, 15 November 2011 by Greg Gillson.

 

On adult gulls the skin around the eye is often colored brightly. This can be a clue to identification. The hue and intensity can change with breeding condition or other factors.

Typical adult Western Gulls have yellow-orange orbital rings.

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