Search over 40,000 articles from the original, classic Encyclopedia Britannica, 11th Edition.
|
See also:SWALLOW (A. S. swalewe, Icel. svala, Du. zwaluw, Ger. Schwalbe)
, the See also:bird which of all others is recognized as the See also:harbinger of summer in the See also:northern hemisphere
.
The name Hirundo rustica of See also:Linnaeus is now employed for the See also:common See also:chimney-See also:swallow of See also:Europe, which has been divided into four or five races
.
In summer it ranges all over Europe, and in See also:Asia extends to See also:Manchuria and See also:China; in See also:winter it migrates See also:south, reaching See also:India, See also:Burma, the See also:Malay See also:Peninsula and the whole of See also:Africa
.
The common swallow of See also:North See also:America, usually called the See also:barn-swallow, is H. erythrogastra, but in summer it also reaches See also:Alaska and See also:Greenland and extends across to See also:Lake See also:Baikal
.
The winter See also:migration extends to Burma for the See also:Asiatic swallows and to South See also:Brazil for those of America
.
In all some twenty-seven See also:species of Hirundo are recognized, the range of the genus being practically See also:world-wide
.
Returning, usually already paired, to its summer haunts, after its winter sojourn in See also:southern lands, and generally reaching See also:England about the first See also:week in See also:April, the See also:English swallow at once See also:repairs to its old quarters, nearly always around the abodes of men; and, about a See also:month later, the site of the See also:nest is chosen, resort being had in most cases to the very spot that has formerly served the same purpose—the old structure, if still remaining, being restored and refurnished
.
So trustful is the bird that it commonly establishes itself in any of men's See also:works that will See also:supply the necessary See also:accommodation, and a See also:shed, a barn, or any See also:building with an open roof, a chimney that affords a support for the nest, or even the See also:room of an inhabited See also:house—if See also:chance should give See also:free See also:access thereto—to say nothing of extraordinary positions, may be the See also:place of its choice
.
Wheresoever placed, the nest is formed of small lumps of moist See also:earth, which, carried to the spot in the bird's See also:bill, are duly arranged and modelled, with the aid of See also:short straws or slender sticks, into the required shape
.
This is generally that of a See also:half-saucer, but it varies according to the exigencies of the site
.
The materials dry quickly into a hard crust, which is lined with soft feathers, and therein are laid from four to six See also:
They collect in flocks, often of many hundreds, and finally leave the See also:country about the end of See also:August or See also:early in See also:September, to be followed, after a few See also:weeks, by their progenitors
.
They See also:moult their feathers in their winter quarters, and this fact affords one of the strongest arguments against the popular belief (which, curious to say, is still partly if not fully entertained by many who should know better) of their becoming torpid in winter, for a See also:state of torpidity would suspend all See also:animal-See also:action .2 The See also:chestnut forehead and See also:throat,
.
1 The See also:language was first reduced to See also:writing by the See also:Arabs, who
still use the Arabic See also:character
.
But the See also:European missionaries have replaced this by the See also:Roman See also:system, which is more suited for the transliteration of most See also:African, end especially of the See also:Bantu, See also:tongues
.
2 See See also: |
|
|
[back] SWAHILI (Wa-Swahili, i.e. coast people, from the Ar... |
[next] JAN SWAMMERDAM (1637-168o) |
There are no comments yet for this article.
Do not copy, download, transfer, or otherwise replicate the site content in whole or in part.
Links to articles and home page are encouraged.