Eastern Whip-poor-willCaprimulgus vociferus
10" (25 cm). Robin-sized. A leaf-brown, strictly nocturnal bird with black throat. Male has broad white tips on outer tail feathers, visible in flight. Female has all-brown tail. Mexican Whip-poor-will is visually nearly indistinguishable, best separated by voice and range. Chuck-will's-widow is larger and buffier.