Baltimore oriole
Icterus galbula

Identification Tips:

• Length: 6.5 inches
• Sharply-pointed bill

Male:

• Black head, back, wings and tail
• Orange underparts, shoulder, and rump
• Orange tips to outer tail feathers
• White wing bar and edges
• Immature male similar to female but brighter orange with variable amounts of black on head

Female:

• Brownish-gray upperparts
• Dull yellowish-orange breast and undertail coverts
• Gray belly
• Two wing bars

Similar species:

Male Baltimore Oriole can be told from other black and orange orioles by its completely black head. Female is similar to other female orioles but can be told from Bullock's by its more orange breast and less gray upperparts. Hooded and Orchard orioles have more extensively yellow underparts.

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

Learn more with the help of Google.