Assertion: carolina wren | /r/HasProperty | vocalization
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Source sentences:
text: Among the species and vocalizations imitated are Carolina wren, northern cardinal, tufted titmouse, eastern towhee, house sparrow, wood thrush and eastern bluebird songs, calls of the northern flicker and great crested flycatcher, jeers and pumphandles of the blue jay, and alarm, chups, and chirrs of the American robin.