Sunday, December 23, 2018

Olympic Gull

It turns out that Northwestern/American Crows are not the only trouble-makers in Olympia (see last post). I would have identified this gull as a Western Gull. Sibley assures us that Western Gulls never have extensive, dark head markings, like this gull. Instead, this winter-plumaged bird is a hybrid between a Western and a Glaucous-winged Gull. Western Gulls generally breed further south than do Glaucous-wings. Hybrids between the two “species” occur up and down the Pacific Coast. Almost all the gulls of this type in Washington are hybrids and are often referred to as Olympic Gulls. This bird guarded a grocery store parking lot in Olympia on 3 December 2018.

No comments:

Post a Comment