a small, North American sparrow, Spizella passerina, common in urban areas.
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British Dictionary definitions for chipping sparrow
a common North American sparrow, Spizella passerina, having brown-and-grey plumage and a white eye stripe
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012