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Glaucous-winged Gull, Larus glaucescens |
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The flying adult at the top may have the pure white head of breeding plumage already in March, and the bird shows how nearly all-white the underparts can appear. The flying bird above, at eye level, shows the more typical uniform light gray. The bird directly left is another winter adult. |
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The bird above is third winter, with adult plumage except for dark in the tail. I first thought it might be a Glaucous, but the bill is too bulbous and has a yellow tip, not a true bicolor. The bird directly left is either second or third winter -- they can be hard to tell apart in this species. |
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The two above and the next two below are first winter birds, and directly left is a first summer bird, showing the very worn first-cycle plumage that produces the impression of an almost all-white gull, sometimes mistakenly taken for a Glaucous. |
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The primary tips much darker than the upperparts mark this as probably an example of the common Glaucous-winged x Western hybrid, first-winter. Another probable example of the same hybrid below. |
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