Booted eagle / Zwergadler (Hieraaetus pennatus)
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Wikipedia: Booted eagle Source: WIKIPEDIA MH_Booted.jpg
Observations
🔍 No documented observationDescription
Classification: Genus Hieraaetus (Hieraaetus); Subfamily True hawks (Accipitrinae); Family Accipitridae (Accipitridae)Vocalization:
Very vocal in breeding season. Most often heard is a quite soft, wader-like series of "kli-kli-kli-kli-kli-kli". [Link]
Seasonal behavior
Seldom seen here
More details at Vogelwarte.ch