In the 19th century, the jay was described by French ornithologist Charles Lucien Bonaparte in 1838 as Cyanocorax cristatus in A geographical and comparative list of the birds of Europe and North America, and given its modern scientific name Cyanocitta cristata by Hugh Edwin Strickland in 1845. It was later described as Corvus cristatus in Carl Linnaeus' 1758 edition of Systema Naturae. The blue jay was first described as Pica glandaria cærulea cristata in English naturalist Mark Catesby's 1731 publication of Natural History of Carolina, Florida, and the Bahamas. The name jay derives from the bird's noisy, garrulous nature and has been applied to other birds of the same family, which are also mostly gregarious. They may stay with their parents for one to two months. Young are altricial, and are brooded by the female for 8–12 days after hatching. The clutch may be two to seven eggs, which are blueish or light brown with darker brown spots. It builds an open cup nest in the branches of a tree both sexes participate. Blue jays can be very aggressive to other birds they sometimes raid nests and have even been found to have decapitated other birds. It typically gleans food from trees, shrubs, and the ground, and sometimes hawks insects from the air. The blue jay feeds mainly on seeds and nuts, such as acorns, which it may hide to eat later soft fruits arthropods and occasionally small vertebrates. Males and females are similar in size and plumage, and plumage does not vary throughout the year. Its coloration is predominantly blue, with a white chest and underparts, and a blue crest it has a black, U-shaped collar around its neck and a black border behind the crest. It breeds in both deciduous and coniferous forests, and is common in residential areas. Resident populations are also in Newfoundland, Canada breeding populations are found across southern Canada. It lives in most of the eastern and central United States some eastern populations may be migratory.
The blue jay ( Cyanocitta cristata) is a passerine bird in the family Corvidae, native to eastern North America.
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