Arctic warbler
Phylloscopus borealis
Identification Tips:
- Length: 4.25 inches
- Thin bill
- Pale supercilium
- Dark eyeline
- Pale grayish-olive upperparts
- Whitish underparts
- Sexes similar
- United States range restricted to Alaska
Similar species:
The Arctic Warbler has a more obvious supercilium than the Orange-crowned
Warbler.
Length and wingspan from: Robbins, C.S., Bruun, B., Zim, H.S., (1966). Birds of North America. New York: Western Publishing Company, Inc.