yellow-rumped warbler

[ yel-oh-ruhmpt ]
/ ˈyɛl oʊˌrʌmpt /

noun

a common North American wood warbler, Dendroica coronata, having yellow spots on the rump, crown, and sides, including a white-throated eastern subspecies (myrtle warbler) and a yellow-throated western subspecies (Audubon's warbler).

Origin of yellow-rumped warbler

An Americanism dating back to 1775–85