Colima warbler Vermivora crissalis

Identification Tips:

• Length: 4.75 inches
• Small, active, insect-eating bird
• Thin, very pointed bill
• White eye ring
• Dark gray head
• Brownish-gray back and wings
• Somewhat paler below
• Dull yellow rump and undertail coverts
• United States range restricted to Chisos Mountains in Texas

Similar species:

Virginia's Warbler is smaller and paler.

Length and wingspan from: Robbins, C.S., Bruun, B., Zim, H.S., (1966). Birds of North America. New York: Western Publishing Company, Inc.