Puerto Rican Lizard Cuckoo

The Puerto Rican lizard cuckoo is 40 to 48 cm (16 to 19 in) long, about half of which is the tail. It has a long decurved bill with a black maxilla and a yellow mandible with a black tip. The sexes have the same plumage. Adults have entirely gray-brown upperparts. Their throat and breast are gray and the belly and undertail coverts tawny. The upper surface of their tail is gray-brown and the underside gray brown darkening to black near the large white tips. Their eye is surrounded by bare red skin. Voice: The Puerto Rican lizard cuckoo's principal call is " a harsh series of ka-ka-ka-ka notes." The call is described in more detail as "an emphatic ka-ka-ka-ka of long duration gradually accelerating and becoming louder, sometimes with altered syllables at the end". The species also makes other calls likened to those of jays, crows, ravens, and doves.