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second cycle Glaucous-winged Gull
	Fig 1) This bird is actually on the dark side for this species in second winter. Note the bill is beginning to get pale. This is highly variable at this age. February 18, 2012. Davis, California. Photo courtesy of Steve Hampton.

Fig 2) A similar bird, largely molted into second summer, still with a mostly black bill. March 1, 2012. Davis, California. Photo courtesy of Steve Hampton.

Fig 3) A typical second cycle bird, characteristically pale with a mostly black bill. Adult gray tones are present in the mantle. March 4, 2011. Davis, California. Photo courtesy of Steve Hampton.

Fig 4) This bird has more adult gray in the mantle, but still comes across as a nearly-white bird with a large black bill. Glaucous-winged Gulls probably keep black in the bill longer than any other species. March 16, 2011. Davis, California. Photo courtesy of Steve Hampton.