Koepcke's Screech Owl

Koepcke's screech owl is about 24 cm (9.4 in) long. Six individuals of M. k. koepckeae weighed 112 to 127 g (4.0 to 4.5 oz) and three of M. k. hockingi 121 to 130 g (4.3 to 4.6 oz). The nominate subspecies has a whitish gray facial disc with darker speckles and a blackish rim. It has short whitish brows above yellow eyes. The crown is very dark brown with pale brown speckles. The upperparts are grayish brown to dark brown with blackish or dusky streaks and dark barring. The folded wing shows a line of whitish spots. The tail is dark brown with narrow ochre bars and small speckles. Voice: The territorial song of Koepcke's screech owl has been described as "a loud, staccato series of notes with slowing pace and rising volume: ko-ko-ko-ko ka ka KA KAH!". M. k. hockingi's song is similar but is longer and higher pitched. An aggressive song is "a series of quieter short hoots rising and falling in pitch". Pairs sometimes sing in duet.