Oreothlypis celata
Length: 4-6 in Wingspan: 7-8 in Weight: 0.3-0.4 oz
Identification:
Drab yellowish olive overall. Light eye ring. Orange crown not typically shown.
Distribution:
Range map by All About Birds
Cool Facts:
Orange-Crowned Warblers rarely reveal their namesake orange crown, displaying the feathers only when excited or agitated. These hardy little birds winter father north than most warblers, with resident populations as far as Seattle.
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References:
Bird on the Move 