Bearded Vulture

https://faunafocus.com/home/may-2018-bearded-vulture/#jp-carousel-7901

Bearded vultures are rarely vocal birds, but make loud chuckling noises during courting.

Bearded vultures are rarely vocal birds and remain generally silent, except in display.

However, during mating, they often make loud chuckling and rather shrill, somewhat peevish whistles and noises. During courtship displays, bearded vultures are reported to emit a sharp, guttural “koolik, koolik”, as well as twittering shrill-like noises.

Sources: (Blumstein, 1990; Ferguson-Lees & Christie, 2001; Tenenzapf, 2011)
Image: Tambako the Jaguar

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