- Length: 8 inches
- Sharply-pointed bill
- Entirely black plumage with purple gloss to head
- May have gray edges in Fall and Winter to upperparts and pale supercilium
- Pale eye
- Dark eye
- Dark gray plumage
Male Rusty Blackbird similar to male Brewer's Blackbird but lacks purple
iridescence. Female Rusty Blackbird has a light eye. Grackles are larger
with much longer tails. Cowbirds are smaller with more conical bills.
Length and wingspan from: Robbins, C.S., Bruun, B., Zim, H.S., (1966). Birds of North America. New York: Western Publishing Company, Inc.
Patuxent Bird Population Studies
Patuxent Bird Identification InfoCenter