from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Either of two small, long-tailed birds (Psaltriparus minimus or P. melanotis) of western North America, having predominantly gray plumage.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A North American long-tailed tit, of the genus Psaltriparus, that has mostly grey plumage
bush + tit (Wiktionary)