French: Hibou maître-bois German: Styxeule Spanish: Búho negruzco
Minas Gerais, Brazil
Subspecies and Distribution
A. s. lambi
R. T. Moore, 1937 – W Mexican highlands (SE Sonora and SW Chihuahua S to Jalisco).
A. s. robustus
L. Kelso, 1934 – S Mexico (Guerrero and Veracruz) S discontinuously to NW Venezuela, Colombia, Ecuador and N Peru.
A. s. siguapa
(d’Orbigny, 1839) – Cuba and I of Pines.
A. s. noctipetens
Riley, 1916 – Hispaniola and I de Gonâve.
A. s. stygius
(Wagler, 1832) – N Brazil S through C Amazonia to E Bolivia, NE Argentina and SE Brazil.
A. s. barberoi
A. W. Bertoni, 1930 – Paraguay and N Argentina (S to Santiago del Estero).
38–46 cm; female 685 g, male 460 g (n = 1 of each sex), unsexed 408 g. Large, dark owl with prominent ear-tufts. Whitish forehead contrasts with blackish... read more
Male gives a single deep, emphatic “whuoh”, repeated at intervals of 6–10 seconds... read more
Montane pine and pine-oak forest, submontane evergreen forest, deciduous forest, humid Chaco... read more
Food and feeding
Small mammals such as rodents and bats; also birds, reptiles, crustaceans and insects. Thirty-four prey items from pellets collected in... read more
Rather poorly studied. Nesting can occur in almost any month of year, the timing varying with latitude and climatic regime; chicks... read more
Little known, probably largely resident. Suspected visitor during Feb–Apr on Cozumel I, off... read more
Status and conservation
Not globally threatened (Least Concern). CITES II. No estimation of global population size; BirdLife International posits that numbers are declining in some areas. Considered... read more
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