The type, an adult male in the Brussels Museum, is from "Tabasco" and, although the catalogue does not so state, was without doubt collected by Ghiesbreght in the same locality as the type of Cyanocorax unicolor.
Obviously a spot as close as possible to the Tabasco boundary should be selected, but a definite selection may well be left to Pierce Brodkorb, in view of his extensive work in Chiapas.--A. v.r Rossr, University of California, Los Angeles.
The type locality of Cyanocorax unlcolor was given in the original description (Bull.
Cyanocorax yucatanlea Except for the juvenile stage and post-juvenal molt stage, the description below is based primarily on a group of six captives obtained in April 1968 from a bird dealer in Merida, Yucatan.
However, several captives hve been retained for over two years of life nd although they were not of known age at acquisition, the changes of soft prt color occurred as predicted from their estimated ges.
INTRODUCTION The fl-and-blue jays constitute four allopatric species: Cyanocorax melanocyanea, the Bushy-crested Jay, C. sanblasiana, the San Blas Jay, C. yucatanica, the Yucatan Jay, and C. beecheli, the Beechey or Purple-backed Jay.
Auk, The: Territoriality and neighbor assessment in Brown Jays (Cyanocorax morio) in Costa Rica
We studied group-level characteristics and individual participation in territorial encounters in the cooperatively breeding Brown Jay (Cyanocorax morio).
Intergroup encounters at stable territory boundaries include both aggressive and affiliative behavior, which suggests that a territorial encounter could function as both a resource defense mechanism and as an arena for social interactions.
When not foraging for food, they roost high in the trees of the rainforest.
Curl-crested jays (Cyanocorax cristatellus) are one of several species of jays displayed at The Dallas World Aquarium.
Green jays (Cyanocorax yncas glaucescens), Plush-crested jays (Cyanocorax chrysops) and San blas jays (Cissilopha sanblasiana) can be seen flying and roosting throughout the rainforest.
In Brazil, the Corvidae are represented only by the genus CyanocoraxBoie, 1826, with eight species, commonly named jays, of which two, occur exclusively along the Venezuelan border.
The source of the samples according to host species is: 3 from Cyanocorax sp.; 77 from C.
Although named after the State of Mato Grosso, the specific name is spelled with a single "s" as originally proposed.
Summary Cyanocorax caeruleus occurs in south-east Brazil (south São Paulo south to Rio Grande do Sul), north-east Argentina (Misiones and north Corrientes), and there is (at least) one credible record for Paraguay
It is rare to locally common up to 1,000 m in lowland evergreen, southern temperate, white-sand and secondary forest and, at least seasonally, is most numerous in Araucaria forest
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world.
