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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 Helm Identification Guides are a series of books that identify groups of birds.The series include two types of guides, those that are: Taxonomic, dealing with a particular family of birds on a worldwide scale—most early Helm Guides were this type, as well as many more-recent ones, although some later books deal with identification of such groups on a regional scale only (e.g., The Gulls ...
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".
The Sibley Guide to Birds is a reference work and field guide for the birds found in the continental United States and Canada. It is written and illustrated by ornithologist David Allen Sibley. The book provides details on 810 species of birds, with information about identification, life history, vocalizations, and geographic distribution.
The Peterson Field Guides (PFG) are a popular and influential series of American field guides intended to assist the layman in identification of birds, plants, insects and other natural phenomena. The series was created and edited by renowned ornithologist Roger Tory Peterson (1908–1996).
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.
Bird Neighbors (1897) by Neltje Blanchan was an early birding book which sold over 250,000 copies. [1] It was illustrated with color photographs of stuffed birds. [2] The Field Guide to the Birds by Roger Tory Peterson is regarded as the key birding book of the 20th century, due to its impact on the development and popularisation of birding.
In this list of birds by common name 11,278 extant and recently extinct (since 1500) bird species are recognised. [1] Species marked with a "†" are extinct.
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