Wilson's warbler Wilsonia pusilla

Identification Tips:

• Length: 4.25 inches
• Small, insect-eating bird
• Thin, pointed bill
• Yellow supercilium and underparts
• Olive upperparts
• Pink legs
• No white in outer tail feathers
• Adult male has black cap

Similar species:

The adult male Wilson'ts Warbler is instantly recognizable with its black cap. Females are similar to female Hooded Warblers but Wilson's are smaller and lack white in the tail.

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