Philadelphia vireo
Vireo philadelphicus
Identification Tips:
- Length: 4.75 inches
- Thick bill with hooked upper mandible
- Sexes similar
- Dark eye
- Bold white supercilium offset by dark eyeline but without
dark stripe above
- Dark lores
- Olive upperparts
- Yellow underparts, most concentrated on breast
- No wing bars
- Blue-gray legs
Similar Species:
Members of the Red-eyed Vireo complex have bolder supercilia
that are bordered above (and below) by black stripes, red eyes as
adults, and mostly white underparts. Warbling Vireo is very
similar, especially fall immatures which can have quite yellow
underparts. Note the pale lores of Warbling Vireo and the tendency
for any yellow to be concentrated on the belly and flanks rather
than the breast. Tennessee Warbler is quite similar but has a
thinner pointed bill. All other vireos have wing bars.
Length and wingspan from: Robbins, C.S., Bruun, B., Zim, H.S., (1966). Birds of North America. New York: Western Publishing Company, Inc.