Search over 40,000 articles from the original, classic Encyclopedia Britannica, 11th Edition.
|
See also:CROW (Dutch, See also:kraal, Ger. Krdhe, Fr. corbeau, See also:Lat. See also:corvus) , a name most commonly applied in See also:Britain to the See also:bird properly called a See also:rook (See also:Corvus frugilegus), but perhaps originally See also:peculiar to its congener, nowadays usually distinguished as the See also:black or carrion-See also:crow (C. corone) . By ornithologists it is also used in a far wider sense, as under the See also:title crows, or Corvidae, is included a vast number of birds from almost all parts of the See also:world, and this See also:family is probably the most highly See also:developed of the whole class Aves . Leaving out of See also:account the best known of these, as the See also:raven, rook, daw, See also:pie and See also:jay, with their immediate See also:allies, our See also:attention will here be confined to the crows in See also:general; and then the See also:species of the family to which the appellation is more strictly applicable may be briefly considered . All authorities admit that the family is very extensive, and is capable of being parted into several See also:groups, but scarcely any two agree . Especially must reserve be exercised as regards the See also:group Streperinae, or piping crows, belonging to the Australian Region, and referred by some writers to the shrikes (Laniidae): and the jays too have been erected into a distinct family (Garrulidae), 1 The " Consensus ecciesiarum Helveticarum reformatarum " was a document See also:drawn up in 1675 and imposed in 1722—as a test of strict See also:Protestant orthodoxy as to the See also:doctrine of See also:grace—by See also:Bern on its subjects in See also:Lausanne and See also:Vaux.though it seems hardly possible to See also:separate them even as a subfamily from the pies (See also:Pica and its neighbours), which See also:lead almost insensibly to the typical crows (Corvinae) . Dismissing these subjects for the See also:present, it will perhaps be most convenient to treat of the two groups which are represented by the genera Pyrrhocorax or choughs, and Corvus or true crows in the most limited sense . Pyrrhocorax comprehends at least two very See also:good species, which have been needlessly divided generically . The best known of them is the Cornish chough (P. graculus), formerly a See also:denizen of the precipitous cliffs of the See also:south See also:coast of See also:England, of See also:Wales, of the See also:west and See also:north coasts of See also:Ireland, and some of the See also:Hebrides, but now greatly reduced in See also:numbers, and only found in such places as are most See also:free from the intrusion of See also:man or of daws (Corvus monedula), which last seem to be gradually dispossessing it of its See also:sea-girt strongholds, and its present scarcity is probably in the See also:main due to its persecution by its kindred . In Britain, indeed, it would appear to be only one of the survivors of a more See also:ancient See also:fauna, for in other countries where it is found it has been driven inland, and inhabits the higher mountains of See also:Europe and North See also:Africa . In the Himalayas a larger See also:form occurs, which has been specifically distinguished (P. himalayanus), but whether justifiably so may be doubted . The general See also:colour is a glossy black, and it has the See also:bill and legs See also:bright red . The remaining species (P. alpinus) is altogether a mountaineer, and does not affect a sea-See also:shore See also:life .
Otherwise it frequents much the same See also:kind of localities, but it does not occur in Britain
.
The alpine chough is somewhat smaller than its congener, and is easily distinguished by its shorter and bright yellow bill
.
Remains of both have been found in See also:French caverns the deposits in which were formed during the " See also:Reindeer See also:Age." Commonly placed by systematists next to Pyrrhocorax is the Australian genus Corcorax, represented by a single species (C. melanorhamphus), but this See also:assignment of the bird, which is chiefly a frequenter of woodlands, cannot be admitted without hesitation
.
Coming now to what may be literally considered crows, our attention is mainly directed to the black or carrion-crow (Corvus corone) and the See also:grey, hooded or See also:Royston crow (C. cornix)
.
Both these inhabit Europe, but their range and the See also:time of their See also:appearance are very different
.
The former is, speaking generally, a summer visitant to the south-western See also:part of Europe, and the latter occupies the north-eastern portion—an irregular See also:line drawn diagonally from about the See also:Firth of See also:Clyde to the See also:head of the Adriatic roughly marking their respective See also:distribution
.
But both are essentially migrants, and hence it follows that when the black crow, as summer comes to an end, retires south-See also:
The See also:house-crow of See also:India (C. splendens) is not very nearly allied to its See also:European namesakes, from which
2 As bearing upon this question may be mentioned the fact that the crow of See also:Australia (C. australis) is divisible into two forms or races. one having the irides See also: |
|
|
[back] JEAN PIERRE DE CROUSAZ (1663-175o) |
[next] CROW INDIANS, or ABSAROKAS (the name for a species ... |
Crow in Dutch is KRAAI and not KRAAL as mentionned in the text
Do not copy, download, transfer, or otherwise replicate the site content in whole or in part.
Links to articles and home page are encouraged.