Black-polled Yellowthroat

The Black-polled Yellowthroat is a vulnerable, medium-sized warbler; males have a distinctive solid black cap (poll), olive-green upperparts, and bright yellow underparts with an olive-washed breast band. It has a highly restricted range in the highlands of central Mexico, inhabiting tall reed beds, cattail marshes, and wet grassy meadows. It feeds on small insects and invertebrates in dense emergent vegetation.