 The black catbird ( Melanoptila glabrirostris ) is a songbird species in the monotypic genus Melanoptila , part of the family Mimidae . At 19 – 20 @.@ 5 cm ( 7 @.@ 5 – 8 in ) in length and 31 @.@ 6 – 42 g ( 1 @.@ 1 – 1 @.@ 5 oz ) in mass , it is the smallest of the mimids . Sexes appear similar , with glossy black plumage , black legs and bill , and dark reddish eyes . The species is endemic to the Yucatán Peninsula , and is found as far south as Campeche , northern Guatemala and northern Belize . Although there are historical records from Honduras and the US state of Texas , the species is not now known to occur in either location . It is found at low elevations in semi @-@ arid to humid habitats ranging from shrubland and abandoned farmland to woodland with thick understory , and is primarily sedentary . 
