- Length: 10-12 inches
- Very long tail
- Long bill
- Frequently gathers in large flocks
- Entirely black plumage
- Entirely purple or purple and greenish iridiscence to plumage
- Pale eye
- Dark eye
- Dark brown plumage
The Common Grackle is similar to blackbirds but is larger with a much
longer tail. Male Great-tailed and Boat-tailed Grackles are similar but
larger with longer tails.
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