Koepcke's Screech-Owl Megascops koepckeae
Version: 1.0 — Published February 5, 2016
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Sounds and Vocal Behavior
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The primary song (also known as the territorial or A song) of Koepcke's Screech-Owl is described as "a sequence of 8-10 low uk notes, slightly rising in pitch and with the last note falling" (Koepcke, in König and Weick 2008); as "a loud, staccato series of notes with slowing pace and rising volume: ko-ko-ko-ko ka ka KA KAH!" (Lane, in Schulenberg et al. 2010); and as "a loud, rising and falling series of 'hysterical' shrill notes that slows down, especially at the end, with accentuated second or third to last notes: ko-ko-ko-ko-ko-ko-ka Ká Ka Kah or ko-ko-ko-ko-ko-ko-ka Ká Kah ... quite unlike any other Megascops" (Fjeldså et al. 2012).
For a representative audio recording with sonogram, see audio
The aggressive song is described as "a series of quieter short hoots rising and falling in pitch" (Lane, in Schulenberg et al. 2010).
A pair of Koepcke's Screech-Owls may sometimes duet, with the primary song of one bird answered with a similar song or with only hiss (which perhaps is given only by the female?) (Lane, in Schulenberg et al. 2010).