Small, round-headed warbler with a short tail. Yellow below with an olive-green back and no wingbars. Its white eyering stands out on the gray head. Chestnut crown patch usually not visible. Birds in the western U.S. have a brighter yellow rump and grayer back than those in the eastern U.S.© James Cummins | Macaulay LibraryWashington, May 02, 2017
- Medium-sized warbler.
- Gray head.
- White eyering.
- Plain olive-green back and wings.
- Yellow throat, breast, and belly.
Immature DescriptionSimilar to adult, but with brownish wash to back and whitish throat patch.
Relative Sizesparrow-sized or smaller
- Both Sexes
- Length: 4.3-5.1 in (11-13 cm)
- Weight: 0.2-0.5 oz (6.7-13.9 g)
- Wingspan: 6.7-7.9 in (17-20 cm)
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