Green Ibis Mesembrinibis cayennensis

  • Order: Pelecaniformes
  • Family: Threskiornithidae
  • Monotypic
  • Authors: Donna Molfetto

Sounds and Vocal Behavior


Green Ibises are mostly silent during the day, but have loud vocalizations, which often are given at dusk as the birds fly to roost; the call also is given from a high snag, or, briefly, when flushed (Hilty 2003). Ogden and Thomas (1985) "variably described [it] as low rattles ending in a soft, bell-like whistle, or an undulating, throaty whistle." Other, more phonetic descriptions are "kro, kro or koro, koro" (Ridgely and Gwynne 1992) or "a loud, rapid, and rolling co'ro, co'ro ... or kr'u'u'u'u'u'u'u'a ...., often over and over with scarcely a pause" (Hilty 2003).

Nonvocal Sounds

None described.

Recommended Citation

Molfetto, D. (2011). Green Ibis (Mesembrinibis cayennensis), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA.