Crested Honey Buzzard in Taiwan at nest, giving rattling calls when macaques approached

Crested Honey Buzzard in Taiwan at nest, issuing rattling calls when macaques approached

Crested Honey Buzzard in Taiwan at nest, nestling giving rattling call

Crested Honey Buzzard in Taiwan at nest, female giving rattling call upon food delivery

Crested Honey Buzzard in Morioka Zoological Park ZOOMO giving calls

Crested Honey Buzzard rescued in Shushensky district, Russia, giving rattling call

Crested Honey Buzzard in Morioka Zoological Park ZOOMO, response to playback of rattling call of Crested Honey Buzzard in Taiwan

Crested Honey Buzzard in Morioka Zoological Park ZOOMO, response to playback of rattling call of Crested Honey Buzzard in Taiwan

Crested Honey Buzzard in Morioka Zoological Park ZOOMO, response to playback of rattling call of Crested Honey Buzzard in Taiwan

Crested Honey Buzzard in Morioka Zoological Park ZOOMO, response to playback of rattling call of Crested Honey Buzzard in Taiwan

Crested Honey Buzzard in Morioka Zoological Park ZOOMO, response to playback of rattling call of European Honey Buzzard at nest

Crested Honey Buzzard in Morioka Zoological Park ZOOMO, response to playback of rattling call of European Honey Buzzard at nest

Crested Honey Buzzard in Morioka Zoological Park ZOOMO, response to playback of rattling call of the European Honey Buzzard at nest

Crested Honey Buzzard in Himeji City Zoo, nest arrangement

Crested Honey Buzzard in Himeji City Zoo, nest arrangement

Crested Honey Buzzard in Morioka Zoological Park ZOOMO, response to playback of rattling call of Crested Honey Buzzard in Russia

Crested Honey Buzzard in Morioka Zoological Park ZOOMO, response to playback of rattling call of Crested Honey Buzzard in Russia

Crested Honey Buzzard in Morioka Zoological Park ZOOMO, response to playback of ratling call of European Honey Buzzard at nest

Crested Honey Buzzard in Himeji City Zoo, reaction when I was leaving

Crested Honey Buzzard in Himeji City Zoo, reaction when I was leaving

Crested Honey Buzzard in Himeji City Zoo, response to playbacks of various types of calls of Crested Honey Buzzards

Crested Honey Buzzard in Himeji City Zoo, response to playbacks of various types of calls of Crested Honey Buzzards

Crested Honey Buzzard in Himeji City Zoo, response to playbacks of various types of calls of Crested Honey Buzzards

Crested Honey Buzzard in Himeji City Zoo, yawning (at the end)

Crested Honey Buzzard in Himeji City Zoo, hesitation at the bath