THE COMMON JAY.

The COMMON JAY, or OAK JACKDAW (_Garrulus glandarius_), is an European

species, bearing no inconsiderable resemblance to the American bird

above described, but its beak is stronger, and the tail shorter and less

rounded. The plumage is silky, lax, and flowing, the feathers upon the

head being prolonged into a crest. Its colour is principally greyish

red or greyish brown, darker upon the back than on the lower parts of

the body; the rump is white, the throat whitish, and marked upon its

upper portion by two broad black streaks, commencing on the cheeks; the

forehead is speckled with black and white; the quills are black, with the

exception of a greyish-white space upon the outer web; the tail-feathers

are black, occasionally edged with blue; the covers over the primary

quills are striped alternately with blue, black, and white, producing

a very lustrous effect. The eye is light blue, the beak black, and the

feet horn colour. The length of this species is about thirteen, and its

breadth twenty inches; the wing measures six and a half, and the tail

five inches and three-quarters. The female is somewhat smaller than her

mate.

A species closely related to this bird, but differing from it in the

markings of the head, is occasionally met with in the south-eastern

parts of Germany; its actual habitat, however, is North-western Asia,

and members of the group to which it belongs are found in Central and

Northern Asia. The Jay inhabits all the wooded districts of Europe except

its northern parts, and is also met with in Central Asia and Western

Africa; in Germany it is exceedingly common, but in England somewhat

scarce. This bird frequents pine forests, woodland pastures, or leafy

groves with equal impartiality, living during the summer in pairs, but at

other seasons of the year flying over the country with its companions in

small parties; it seems to avoid localities where there are no oak-trees,

such districts being rarely visited. The Jay is extremely restless, and

though in some respects a lively and interesting bird, is so crafty

as to render it at times very troublesome, not only to its feathered

associates, but to man. When excited, it places itself in a succession of

strange attitudes, and imitates a great variety of sounds with amusing

correctness. Whilst in a tree, its movements are light and active, and

its gait upon the ground by no means awkward; but its flight is heavy,

and it rarely remains for any length of time in the air, preferring to

perch at short intervals upon trees or bushes, using them, however, not

merely as resting-places, but as temporary shelter from the numerous

feathered enemies by whom it is constantly pursued in the course of its

short excursions from one wood to another. Naumann describes the dread

in which many birds of prey are held by the Jays as so great, that they

rarely venture to congregate in large flocks, but fly apart over the open

country, living according to the advice of the old French maxim, "Chacun

pour soi." The wonderful power possessed by this species of imitating

the voices of other birds is noticed by many writers. Naumann heard a

Jay whinny like a foal and crow like a cock; and Rosenberg tells us that

late in the autumn, when seated beneath a tree, he heard one successively

imitate the voices of the Magpie, the Shrike, the Thrush, and the

Starling, and that on searching the branches to obtain a sight of such

unseasonable vocalists, he discovered that all these various sounds were

produced by a Jay, perched on a bough just above his head.

Of this bird it may be said, in the broadest sense of the word, that it

will eat anything it is possible to obtain or vanquish; nothing, from a

mouse to the smallest insect, escapes its voracity. During the autumn it

often subsists for weeks together upon acorns and birch or hazel nuts,

softening the former in the crop, and afterwards tearing off the shell

with its beak; the latter it breaks by hammering upon them without any

such preparatory process; Naumann also mentions having seen one of these

birds in the act of killing a Thrush, and adds that they frequently

work great destruction among young Partridges. The period of incubation

commences early in the spring; the nest, which is by no means large, is

placed in the branches of a tree at very various heights from the ground,

and formed of dry stalks or small twigs, neatly lined with fibrous

roots. The eggs, five to six in number, are laid about April; they are

of a dirty white, thickly marked with greyish-brown streaks and spots,

some of which form a wreath around the broadest end. Only one brood is

produced during the year. The young nestlings leave the shell in about

sixteen days, and are fed at first on caterpillars, larvæ, worms, and a

variety of insects, but at a later period are reared upon the flesh of

young birds. Falcons and Sparrow-hawks are among the many enemies with

which the Jay has to contend; by the former it is immediately vanquished,

but with the latter it will sometimes struggle long and fiercely, the

combatants not unfrequently falling to the ground, exhausted by the

violence of their efforts. The Horned Owl is a still more formidable

assailant, destroying many birds belonging to this species; and their

nests are constantly sacked by the Tree Martin, whose approach is often

greeted with the most appalling cries as the parents attempt to drive

the destroyer from their young. In its intercourse with man the Jay

is extremely wary, and often succeeds in exasperating the sportsman,

as, while in safety itself, it derides his efforts by its cries, and

at the same time warns the other denizens of the wood that danger is

approaching. If taken young, these birds may be trained to utter words,

but their many disagreeable propensities render them even more unfit for

a life of confinement than their American congeners.

* * * * *

In the more northern countries of Europe where the Common Jay is not met

with, we find it replaced by a species whose delicate beak, decidedly

rounded tail, and dusky plumage, have caused it to be regarded as the

representative of a distinct group.

Cassell's book of birds; vol. 1 · 第 330 / 363 题