blue jay

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A North American bird (Cyanocitta cristata) having a crested head, predominantly blue plumage, and a harsh, noisy cry.

from The Century Dictionary.

• noun See jay.
• noun See road monkey.

from the GNU version of the Collaborative International Dictionary of English.

• (Zoöl.) The common jay of the United States (Cyanocitta, or Cyanura, cristata). The predominant color is bright blue.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A species of North American jay with blue feathering from the top of its head to midway down its back, Cyanocitta cristata

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun common jay of eastern North America; bright blue with grey breast