whitethroat n Old World warbler similar to the greater whitethroat but smaller n greyish-brown Old World warbler with a white throat and underparts n common North American finch with a white patch on the throat and black-and-white striped crown Usage(s) The whitethroat is hardly alone in clocking a killer flight schedule. Synonym(s) lesser whitethroat Sylvia curruca greater whitethroat Sylvia communis white-throated sparrow Zonotrichia albicollis