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Jay
Jays are a paraphyletic grouping of passerine birds within the family Corvidae. Although the term "jay" carries no taxonomic weight, most or all of the birds referred to as jays share a few similarities: they are small to medium-sized, usually have colorful feathers and are quite noisy. These superificial characteristics set them apart from most other corvids such as crows, ravens, jackdaws, rooks and magpies, which are larger and have darker plumage. Many so-called "jays" are genetically closer to these other corvids than other jays, however. Systematics and species Jays are not a monophyletic group. Anatomical and molecular evidence indicates they can be divided into a New World and an Old World lineage (the latter including the ground jays and the piapiac), while the grey jays of the genus ''Perisoreus'' form a group of their own.http://www.nrm.se/download/18.4e32c81078a8d9249800021299/Corvidae%5B1%5D.pdf PDF fulltext The black magpies, formerly believed to be related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gymnorhinus
The pinyon jay (''Gymnorhinus cyanocephalus'') is a species of jay, and is the only member of the genus ''Gymnorhinus''. Native to Western North America, the species ranges from central Oregon to northern Baja California, and eastward as far as western Oklahoma, though wanderers are often sighted beyond this range. It is typically found within foothills, especially where pinyon pines (''Pinus edulis'' and ''Pinus monophylla'') occur. Description The pinyon jay is a bluish-grey coloured bird with deeper head colouring and whitish throat with black bill, legs and feet. Roughly intermediate between the blue jay and the Eurasian jay in size, its overall proportions are similar to Clark's nutcracker (''Nucifraga columbiana'') and this can be seen as convergent evolution, as both birds fill similar ecological niches. They were once known as "blue crows". Taxonomy The pinyon jay was first collected, recorded, and first described as a species from a specimen shot along the Marias ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corvidae
Corvidae is a Cosmopolitan distribution, cosmopolitan Family (biology), family of Songbird, oscine passerine birds that contains the crows, ravens, Rook (bird), rooks, magpies, jackdaws, jays, treepies, choughs, and Nutcracker (bird), nutcrackers. In Colloquialism, colloquial English, they are known as the crow family or corvids. Currently, 139 species are included in this family. The genus ''Corvus'' containing 50 species makes up over a third of the entire family. Corvids (ravens) are the largest passerines. Corvids display remarkable Animal cognition, intelligence for animals of their size, and are among the most Bird intelligence, intelligent birds thus far studied. Specifically, members of the family have demonstrated self-awareness in mirror tests (Eurasian magpies) and Tool use by animals, tool-making ability (e.g. crows and rooks), skills which until recently were thought to be possessed only by humans and a few other mammals. Their total Brain–body mass ratio, brain-to- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphelocoma
The passerine birds of the genus ''Aphelocoma'' include the scrub jays and their relatives. They are New World jays found in Mexico, western Central America and the western United States, with an outlying population in Florida. This genus belongs to the group of New World (or "blue") jays—possibly a distinct subfamily–which is not closely related to other jays, magpies or treepies. Within this group, according to a 2023 molecular analysis, ''Aphelocoma'' is the sister group to a clade consisting of ''Cyanocitta'' and ''Pinyon jay, Gymnorhinus''. They live in open pine-oak forests, chaparral, and California mixed evergreen forest, mixed evergreen forests. Systematics Seven species of ''Aphelocoma'' are generally recognized at the present time. They are believed to have evolved in the Pleistocene, and the Florida scrub jay is known to have been recognizably distinct and present in its current range for at least two million years. The inland, coastal, and Santa Cruz island pop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyanocorax
__NOTOC__ ''Cyanocorax'' is a genus of New World jays, passerine birds in the family Corvidae. It contains several closely related species that primarily are found in wooded habitats, chiefly in lowland tropical rainforest but in some cases also in seasonally dry forest, grassland and montane forest. They occur from Mexico through Central into southern South America, with the green jay and brown jay just entering the United States in southernmost Texas, ad the Azure and Plush-crested jays occurring southwards to the lower Paraná River basin. This genus is considered especially close to ''Cyanolyca'', an upland radiation occurring throughout the American Cordillera from Mexico to Peru and Bolivia, who look very similar to the blue-and-black species of ''Cyanocorax'' except for being a bit smaller. The North American blue jay genera ''Aphelocoma, Cyanocitta'' and '' Gymnorhinus'' seem to be slightly less closely related. ''Cyanocorax'' jays are generally black-and-blue, often ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyanocitta
''Cyanocitta'' is a genus of birds in the family Corvidae, a family which contains the crows, jays and magpies. The genus includes two crested jays with blue plumage and a distinctive feather crest. Found only in temperate North America, the Rocky Mountains divide the two species. These jays inhabit deciduous, mixed, and coniferous forests, feeding mainly on seeds, invertebrates, and small vertebrates, with occasional human food. As omnivores, they breed from spring to early summer, nesting in treetops or bushes with clutches of three to six eggs. They are the only American corvids that use mud in nest-building. Despite their similarities, the two species differ in migratory behavior, socialization, and mating habits. Description Crested jays are relatively slender corvids with similar body shapes but differ in size. Steller’s jay is larger than the blue jay. Their strong black beaks have a small hooked tip and minimal bristles. They have slightly rounded, medium-to-long tails ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurasian Jay
The Eurasian jay (''Garrulus glandarius'') is a species of passerine bird in the crow family Corvidae. It has pinkish brown plumage with a black stripe on each side of a whitish throat, a bright blue panel on the upper wing and a black tail. The Eurasian jay is a woodland bird that occurs over a vast region from western Europe and north-west Africa to the Indian subcontinent and further to the eastern seaboard of Asia and down into south-east Asia. Across this vast range (biology), range, several distinct racial forms have evolved which look different from each other, especially when comparing forms at the extremes of its range. The bird is called jay, without any epithets, by English speakers in Great Britain and Ireland. Taxonomy and systematics The Eurasian jay was Species description, formally described by the Swedish naturalist Carl Linnaeus in 1758 in the 10th edition of Systema Naturae, tenth edition of his ''Systema Naturae'' under the binomial nomenclature, binomial nam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podoces
The ground jays or ground choughs belong to a distinct group of the passerine order of birds in the genus ''Podoces'' of the crow family Corvidae. They inhabit high altitude semi-desert areas from central Asia to Mongolia. Ground jays show adaptations to ground living such as long, strong legs adapted to fast running and the ability to leap and bound onto boulders and rocks with great agility. Their long, curved thick bills are adapted for digging and probing. While capable of bird flight, flight (which they do infrequently and relatively weakly), they prefer running, and will readily perch on trees and bushes also. Species list The ground tit (''Pseudopodoces humilis''), previously Hume's ground jay, has changed its placement within the Passeriformes recently because of molecular and osteological testing. It has now been placed into the tit (bird), Paridae. References {{Taxonbar, from=Q1991447 Podoces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyanolyca
''Cyanolyca'' is a genus of small jays found in humid highland forests in southern Mexico, Central America and the Andes in South America. All are largely blue and have a black mask. They also possess black bills and legs and are skulking birds. They frequently join mixed-species flocks of birds. Species References External links * * Cyanolyca, Bird genera {{Corvidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lanceolated Jay
The black-headed jay or lanceolated jay (''Garrulus lanceolatus'') is roughly the same size as its close relative the Eurasian jay, but a little more slender overall except for the bill which is slightly shorter and thicker. The top of the head is black and it has a more obvious crest too and a longer tail. It ranges from eastern Afghanistan eastwards, across the Himalayas, from India to Nepal and Bhutan. It occurs in wooded country with large areas of open ground rather than dense forest. It also occurs in some cultivated areas and even near villages as long as there are enough trees and scrubland nearby. It feeds both on the ground and in trees, and takes virtually the same wide range of plant and animal foods as its close relative, including eggs and nestlings, as well as scraps near human habitation. It nests in trees and suitable bushes and in this resembles the Eurasian jay in every respect. their nests are made of sticks plastered together with mud and lined with weeds an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lidth's Jay
Lidth's jay (''Garrulus lidthi''), also known as the Amami jay, is a passerine bird in the family Corvidae native to Japan. Measuring up to in total length, . arkive.org it is slightly larger than its close relative the , with a proportionately stouter bill and also a longer tail. It has no discernible crest, with the head s a velvety black, the shoulders and back a deep purplish blue and all other parts a rich chestnut purple. This jay has a very restricted distribution occ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perisoreus
The genus ''Perisoreus'' is a very small genus of jays from the Boreal regions of North America and Eurasia from Scandinavia to the Asian seaboard. An isolated species also occurs in north-western Sichuan of China. They belong to the Passerine order of birds in the family Corvidae. Species of ''Perisoreus'' jays are most closely related to the genus '' Cyanopica''. The genus was introduced by the French zoologist Charles Lucien Bonaparte in 1831. The type species was subsequently designated as the Canada jay. The name of the genus may come from the Ancient Greek ''perisōreuō'' "to heap up" or "bury beneath". Alternatively it may be from the Latin ''peri-'' "very" or "exceedingly" and ''sorix'', a bird of augury Augury was a Greco- Roman religious practice of observing the behavior of birds, to receive omens. When the individual, known as the augur, read these signs, it was referred to as "taking the auspices". "Auspices" () means "looking at birds". ... dedicated to Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
