Adult - ML303396771 — Adult © Marco Valentini eBird S63164452 Macaulay Library ML 198090131

Nonbreeding adult - ML39446161 — Nonbreeding adult © Ian Davies

First winter - ML303396921 — First winter © Manuel Amaro Carvalho

First winter - ML70197591 — First winter © Alix d'Entremont

First winter - ML303397321 — First winter © Stanislav Cherepushkin

First summer - ML70197631 — First summer © Steve Kelling

Second winter - ML303397281 — Second winter © Blake Matheson

Second summer - ML303397271 — Second summer © Ian Davies

Third winter - ML303397241 — Third winter © Melissa James

First winter - ML169549191 — First winter © Ruth Danella

First winter - ML39446151 — First winter © Brian Sullivan

Glaucous Gull Larus hyperboreus

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Identification

Very large, pale gull. Adults are mostly white with a very pale gray back; note pure white wingtips. Immatures are white or pale tan with light brown markings; also look for the distinctive pink bill with sharply demarcated black tip. Most similar to Iceland Gull but larger, larger-billed, and usually even paler; Iceland typically shows more dark markings on wingtips. Also note shorter wingtips on Glaucous that do not extend far past tip of tail. Breeds in the High Arctic; winters farther south in a variety of habitats, rarely far from a large body of water. Often seen in small numbers mixed with flocks of other large gulls. Hybridizes with Glaucous-winged Gull and Herring Gull in parts of range; hybrids can show any mix of intermediate traits and are sometimes best left unidentified.