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The rook is a fairly large bird, at 280 to 340 g (9.9 to 12.0 oz) adult weight, 44 to 46 cm (17 to 18 in) in length and 81 to 99 cm (32 to 39 in) wingspan. [8] It has black feathers that often show a blue or bluish-purple sheen in bright sunlight.
The western jackdaw was one of the many species originally described by Carl Linnaeus in his 18th century work Systema Naturae. [2] Owing to its supposed fondness for picking up coins, Linnaeus gave it the binomial name Corvus monedula, choosing the specific name mǒnēdŭla, which is derived from moneta, the Latin stem of the word "money".
Corvidae is a cosmopolitan family of oscine passerine birds that contains the crows, ravens, rooks, magpies, jackdaws, jays, treepies, choughs, and nutcrackers. [1] [2] [3] In colloquial English, they are known as the crow family or corvids.
A 69-million-year-old skull found in Antarctica belonged to what scientists say is the oldest known modern bird.. An early relative of the continent’s ducks and geese, it lived off the Antarctic ...
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The striated caracara or Forster's caracara (Phalcoboenus australis) is a Near Threatened bird of prey of the family Falconidae, the falcons and caracaras. [4] [1] It is found in Tierra del Fuego and the Falkland Islands. [5] In the Falklands it is known as the Johnny rook, probably named after the Johnny penguin (gentoo penguin). [6]
Compared with the skulls of most other birds, G. newtoni’s skull is quite short. But the jaws are massive, supported by powerful muscles. “They would have had a very wide gape,” McInerney said.
The skull was relatively immobile, incapable of the kinesis of modern birds that can raise the snout relative to the back of the skull. This immobility was caused by the presence of a triradiate postorbital separating the eye socket from the lower temporal opening, as with more basal theropod dinosaurs, and the premaxillae of the snout reaching ...