Crested Eagle Morphnus guianensis

  • Order: Accipitriformes
  • Family: Accipitridae
  • Monotypic
  • Authors: Jedediah W. Smith
Sections

Sounds and Vocal Behavior

Vocalizations

Crested Eagle is not a very vocal species (Hilty and Brown 1986). The call has been compared to that of Great Black Hawk (Buteogallus urubitinga; Lehmann 1943). Descriptions of the call include "shrill, high-pitched whistle, sometimes 2-parted with second part higher in pitch (suggestive of Great Black Hawk" (Stiles and Skutch 1989); "a loud hawk-eagle-like scream, wheyr-wheyr-wheyr-wheyr-wheyr-whéyr-br" (Ridgely and Greenfield 2001b); and " a series of high, descending pure whistles" (Lane, in Schulenberg et al. 2010). At the nest, Bierregaard (1984) noted the adult giving a “shrill, high pitched whistle, reminiscent of a bosun’s whistle…Youuu-ree… the final note short and ascending”. He also noted that after copulation, the male gave a single high-pitched whistle. When the male brought food to the incubating female, he announced his arrival with a repeated similar call; the female responded with a "high-pitched, shrill wee hee", while pumping her wings with each syllable.

Additional audio recordings of vocalizations of Crested Eagle can be heard at Macaulay Library and at xeno-canto.

Nonvocal Sounds

None reported.

Recommended Citation

Smith, J. W. (2012). Crested Eagle (Morphnus guianensis), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/nb.creeag1.01