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Coordinators: 1cy June 2cy Jan 3cy Jan adult Jan |
Ring-billed Gull delawarensis 1st cycle (1CY), October 09 2005, Eastham, MA. Picture: David Sibley.See David's site. This is a very dark and fresh-looking juvenile, with mostly dark bill, much as one would expect in late summer. Second picture again this bird: two first-fall Ring-billed Gulls sleeping, with very different plumage – the one on the left still in full juvenal plumage, while the one on the right has replaced most of the body feathers with first-winter plumage.
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delawarensis Ring-billed Gull
