The genus ''Perisoreus'' is a very small genus of jays from the Boreal regions of North America and

Eurasia Eurasia (, ) is the largest continental area on Earth, comprising all of Europe and Asia. Primarily in the Northern and Eastern Hemispheres, it spans from the British Isles and the Iberian Peninsula in the west to the Japanese archipelag ...

from

Scandinavia Scandinavia; Sámi languages: /. ( ) is a subregion in Northern Europe, with strong historical, cultural, and linguistic ties between its constituent peoples. In English usage, ''Scandinavia'' most commonly refers to Denmark, Norway, and Swe ...

to the

Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an ...

n seaboard. An isolated species also occurs in north-western Szechuan province of China. They belong to the

Passerine A passerine () is any bird of the order Passeriformes (; from Latin 'sparrow' and '-shaped'), which includes more than half of all bird species. Sometimes known as perching birds, passerines are distinguished from other orders of birds by th ...

order of birds in the family

Corvidae Corvidae is a cosmopolitan family of oscine passerine birds that contains the crows, ravens, rooks, jackdaws, jays, magpies, treepies, choughs, and nutcrackers. In colloquial English, they are known as the crow family or corvids. Cu ...

. Not closely related to other birds known as jays, they are instead related to the genus '' Cyanopica''. The genus was introduced by the French zoologist

Charles Lucien Bonaparte Charles Lucien Jules Laurent Bonaparte, 2nd Prince of Canino and Musignano (24 May 1803 – 29 July 1857), was a French naturalist and ornithologist. Lucien and his wife had twelve children, including Cardinal Lucien Bonaparte. Life and career ...

in 1831. The

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen( ...

was subsequently designated as the Canada jay. The name of the genus may come from the

Ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic p ...

''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 is the practice from ancient Roman religion of interpreting omens from the observed behavior of birds. When the individual, known as the augur, interpreted these signs, it is referred to as "taking the auspices". "Auspices" (Latin ''ausp ...

dedicated to Saturn.

Species

The genus contains three species.

Notes

References

Bird genera Taxa named by Charles Lucien Bonaparte {{Corvidae-stub