Online Encyclopedia

Search over 40,000 articles from the original, classic Encyclopedia Britannica, 11th Edition.

BLACKCOCK (Tetrao tetrix)

Online Encyclopedia
Originally appearing in Volume V04, Page 21 of the 1911 Encyclopedia Britannica.
Spread the word: del.icio.us del.icio.us it!

See also:

BLACKCOCK (Tetrao tetrix) , the See also:English name given to a See also:bird of the See also:family Tetraonidae or See also:grouse, the See also:female of which is known as the See also:grey See also:hen and the See also:young as poults. In See also:size and plumage the two sexes offer a striking contrast, the male weighing about 4 lb, its plumage for the most See also:part of a See also:rich glossy See also:black shot with See also:blue and See also:purple, the lateral tail feathers curved outwards so as to See also:form, when raised, a See also:fan-like See also:crescent, and the eyebrows destitute of feathers and of a See also:bright See also:vermilion red. The female, on the other See also:hand, weighs only 2 lb, its plumage is of a russet See also:brown See also:colour irregularly barred with black, and its tail feathers are but slightly forked. The See also:males are polygamous, and during autumn and See also:winter See also:associate together, feeding in flocks apart from the See also:females; but with the approach of See also:spring they See also:separate, each selecting a locality for itself, from which it drives off all intruders, and where See also:morning and evening it seeks to attract the other See also:sex by a display of its beautiful plumage, which at this See also:season attains its greatest perfection, and by a See also:peculiar cry, which See also:Selby describes as " a crowing See also:note, and another similar to the See also:noise made by the whetting of a See also:scythe." The See also:nest, composed of a few stalks of grass, is built on the ground, usually Blackcock. beneath the See also:shadow of a See also:low See also:bush or a tuft of tall grass, and here the female See also:lays from six to -ten eggs of a dirty-yellow colour speckled with dark brown. The blackcock then rejoins his male associates, and the female is See also:left to perform the labours of hatching and rearing her young brood. The plumage of both sexes is at first like that of the female, but after moulting the young males gradually assume the more brilliant plumage of their sex. There are also many cases on See also:record, and specimens may be seen in the See also:principal museums, of old female birds assuming, to a greater or less extent, the plumage of the male. The blackcock is very generally distributed over the highland districts of See also:northern and central See also:Europe, and in some parts of See also:Asia. It is found on the principal heaths in the See also:south of See also:England, but is specially abundant in the See also:Highlands of See also:Scotland.

End of Article: BLACKCOCK (Tetrao tetrix)

Additional information and Comments

There are no comments yet for this article.
» Add information or comments to this article.
Please link directly to this article:
Highlight the code below, right click, and select "copy." Then paste it into your website, email, or other HTML.
Site content, images, and layout Copyright © 2006 - Net Industries, worldwide.
Do not copy, download, transfer, or otherwise replicate the site content in whole or in part.

Links to articles and home page are always encouraged.

[back]
BLACKBURNE, FRANCIS (1782-1867)
[next]
BLACKFOOT (Siksika)