This secretive slow-moving species replaces the more familiar Yellow-billed Cuckoo in the neotropics. Although often found in mangroves, it is not restricted to that habitat; it occurs in pines along the coast as well as locally inland. Up to 14 subspecies have been named but recent reviews found all but one to be invalid; and that one is now considered to be a full species (Cocos Cuckoo). Thus Mangrove Cuckoo is currently considered monotypic (Payne & Kirwan 2016).
References:
Lloyd, John D. 2013. Mangrove Cuckoo (Coccyzus minor), Neotropical Birds Online (T. S. Schulenberg, Editor). Ithaca: Cornell Lab of Ornithology; retrieved from Neotropical Birds Online.
Payne, R. & Kirwan, G.M. (2016). Mangrove Cuckoo (Coccyzus minor). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
Canon SX50 HS