Cayenne Jay Cyanocorax cayanus

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

Systematics

Geographic Variation

No subspecies are currently recognized.

Related Species

Described as Corvus cayanus by Linnaeus in 1766. Placed in the genus Cyanocorax Boie 1826 by most subsequent authors.
Recent genetic work, based on DNA sequence data from two mitochondrial genes (NADH dehydrogenase subunit 2 and cytochrome b) and from three nuclear loci (the adenylate kinase intron, the ß-fibrinogen intron 7, and TGFß2.5) demonstrates that the genus Cyanocorax is not monophyletic (Bonaccorso et al. 2010). Cyanocorax and related genera form two clades. One clade (their Clade B) is composed of most species of Cyanocorax (including the "Cissilopha" group); the second clade (their Clade A) contained four species of Cyanocorax as well the genera Psilorhinus (Brown Jay) and Calocitta (Black-throated and White-throated magpie-jays).
Cyanocorax cayanus is one of twelve species of Cyanocorax in Clade B, a large suite of species that includes most members of the genus. Within Clade B, cayanus is sister to the species pair Plush-crested Jay (Cyanocorax chrysops) and White-naped Jay (Cyanocorax cyanopogon), which are sister to one another (Bonaccorso et al. 2010).

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