The Black-billed Cuckoo is a slender and long-tailed cuckoo bird generally measuring 28-31 cm in length and 45-55 g in weight. This bird has a moderately long and curved bill, marked by a hooked tip on the upper-mandible of the darkly colored bill. Plumage on the upper part of the head and body are a grayish-brown while the under-plumage areas are a dull weight. The ring around the pupil of the eye is generally a bright orange-red color (Bent 1940, Oberholser 1974, Nolan 1975, National Geographic Society 1983, Pyle 1995, 1997).

Life History information provided for the Black-billed Cuckoo is summarized from the Birds of North America Online (http://bna.birds.cornell.edu/bna/).

References Cited in Species Profile