Cayenne Jay Cyanocorax cayanus

  • Order: Passeriformes
  • Family: Corvidae
  • Monotypic
  • Authors: Alexander V. Kumar
Sections

Breeding

Little information.  Mees reported a nest in the crown "of a tall tree" in Suriname; the nest was constructed of twigs (Haverschmidt and Mees 1994). Bosque and Molina (2002) presented more detailed information on two nests from Venezuela. One nest was in a fork about 5 m above the ground in a large tree overhanging a river. The second nest was 3.6 m above the ground in a mango tree at the edge of a Native American settlement. Both nests were cup shaped and made of twigs with no lining. Four eggs were observed in the second nest. These averaged 29.9 mm (SD ± 0.9 mm) in length and 23.4 mm (SD ± 0.1 mm) in width. Their average weight was 8.4 g (SD ± 0.3 g). The eggs were white with blotchy brownish grayish spots (Bosque and Molina 2002).

The Cayenne Jay is a cooperative breeder with a minimum of three individuals providing food to nestlings (Bosque and Molina 2002) for nestlings. Additionally, four birds participated in mobbing behavior at a nest directed at a perceived predator (see Predation).

Nests in Suriname were encountered in May (Haverschmidt and Mees 1994), and in Venezuela in April (Bosque and Molina 2002). Hilty (2003) gives January-March as the breeding season in Venezuela.

Recommended Citation

Kumar, A. V. (2010). Cayenne Jay (Cyanocorax cayanus), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/nb.cayjay1.01