Kutras Lake and the California Gull
10,000 Birds
SEPTEMBER 23, 2015
On top of that, they occur in breeding and non-breeding plumage! The top photo shows a first winter California Gull ( Larus californicus ) on the right and a non-breeding adult on the left. I found the Sibley Guide to Birds very helpful in determining that this bird is a first winter California Gull.
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