The bird genus corvidae consists mainly of what commonly known bird?
Rook (bird) Rook (bird) The rook ("Corvus frugilegus") is a member of the family Corvidae in the passerine order of birds. It was given its binomial name by Carl Linnaeus in 1758, The binomial is from Latin; "Corvus" is for "raven", and "frugilegus" is Latin for "fruit-gathering", from "frux, frugis", "fruit", and "legere", "to pick". The English name is ultimately derived from the bird's harsh call. This species, at 45–47 cm in length, is similar in size to or slightly smaller than the carrion crow, with black feathers often showing a blue or bluish-purple sheen in bright sunlight. The feathers on the
Nutcracker (bird) the species are migratory, but they will leave their usual ranges if a cone crop failure causes a food shortage. Nutcracker (bird) The nutcrackers (Nucifraga) are a genus of three species of passerine bird, in the family Corvidae, related to the jays and crows. The genus name is a New Latin translation of German "Nussbrecher", "nut-breaker". The most important food resources for both these species are the seeds (pine nuts) of various pines ("Pinus" sp.), principally the cold-climate (far northern or high altitude) species of white pine ("Pinus" subgenus "Strobus") with large seeds: "P. albicaulis, P. armandii, P. cembra, P.