blue bird
It is bluebird!
A "bluebird".
A bluebird?
Eastern bluebird.
Bluebird
peacock
Do you mean another word for feathers? You could say "Bird with blue plumage," or "Bird with vibrant blue plumage."
Bluebird
ofcourse
Since the word "blue" has a long U, the simplest ones are bluebird and blue jay.
Motor bird is not a compound word.