Black-capped Screech Owl

The black-capped screech owl is 22 to 23 cm (8.7 to 9.1 in) long. Males weigh 115 to 140 g (4.1 to 4.9 oz) and females up to 160 g (5.6 oz). It occurs in brown, rufous, and gray morphs. All have a light facial disc with a distinct dark border, a blackish crown, and prominent "ear" tufts. Their eye color ranges from dark brown to amber. The brown morph's upperparts are dark brown with pale mottling and vermiculation. The folded wing shows a line of pale spots. The underparts are paler with irregular markings. The other two morphs are redder and grayer respectively. Voice: The black-capped screech owl's primary song is "a long fast trill, very faint before increasing in volume, ending abruptly". Its secondary song is short, with a "bouncing-ball rhythm". Both sexes sing in duet and the female's voice is higher pitched.