British Birds in Their Haunts

by C. A. Johns

It so happens that a certain district offers good hunting-ground, and the eaves or windows of a certain house are peculiarly well adapted for sheltering nests; so a number of Window Martins, not having taken counsel together, but guided each by independent choice, find themselves established sometimes so close together that their nests have party walls, like the houses in a street. They accordingly make acquaintances, and are sociable to a limited extent. But Sand Martins go beyond this, they are comrades banded together by municipal laws, which no doubt they understand and obey, inhabiting dwellings which constitute a joint settlement, returning without fail to the familiar haunt after every annual migration, or if they desert a station, leaving no stragglers behind, and pitching their camp anew in some locality which common consent has pronounced to be an eligible one. They are not, however, exclusive in their fraternization; as they hunt in society with their relatives the Swifts and Swallows, and even accompany them in distant flights. I have repeatedly observed Sand Martins flying about with others of the same tribe many miles away from their homes. They may readily be distinguished, as I have stated before, by their dingy mouse-coloured hue, smaller size, and less forked tails. I have never had an opportunity of watching a colony engaged in their mining operations at the busy period of their year, that of nidification; but from the description by Professor Rennie (Bird Architecture) and that by Mr. R. D. Duncan, quoted by Macgillivray, the sight must be most interesting. The task of the older birds must be a light one; not so, however, that of the younger members of the flock. The former have neither walls nor roofs to repair; the holes which served them as nests the previous year afford the same accommodation as before. All that is needed is, that the remains of the old nest should either be removed or receive the addition of a few straws and feathers to protect the eggs and young from direct contact with the cold sand; their labours then are over. But the new colonists have a toilsome work to perform before they can enjoy the gratification of bringing up a family. The settlement is fixed probably in the perpendicular face of a bank of sand, gravel, or clay, at an elevation from the ground which varies from a few to a great many feet. Their claws are sharp and well adapted for clinging, the beak short, rigid, and pointed, no less well suited for excavating. Grasping the perpendicular surface of the bank with their claws, and steadying themselves by means of their tails they commence operations by pricking a small hole with their bills. This hole they gradually enlarge by moving round and round, and edging off the sand with the side of their bills, which they keep shut. Their progress is slow at first, but after they have made room to stand on the excavation, they proceed rapidly, still working with their bills, and carefully pushing out the loosened sand with their feet. At one time the male, at another the female, is the excavator. When their burrowing is impeded by the resistance of a stone, they either dig round it and loosen it, or, if it prove so large as to defy removal, they desist and begin another cell. The form of the hole varies both in size and shape, but it rarely exceeds three or four inches in diameter, and more or less approaches the circular form. The depth varies from a few inches to three feet, and the direction seems to depend on the nature of the soil encountered. In all, however, the extremity of the hole is enlarged to a diameter of five or six inches, and is situated above the level of the entrance, so that no rain-water can lodge. The work is performed only in the mornings, and is consequently carried over several days. The nest itself consists of straws of grass and feathers, and is placed in the terminal chamber. The eggs are five or six in number, pure white, and of a rather long shape.

FAMILY FRINGILLIDÆ

THE GREENFINCH
LIGURINUS CHLORIS

All the plumage yellowish green, variegated with yellow and ash-grey. Length six inches. Eggs bluish white, speckled and spotted with purplish grey and dark brown.

The Greenfinch, or Green Linnet, is one of our most generally diffused birds. No bird is a more frequent inhabitant of country gardens during the summer than this, being attracted, it would seem, not so much by the prospect of abundance of food, as by its fondness for building its nest in evergreens and the thick hedges of shrubberies. The lively greenish yellow tint of the plumage on its throat and breast sufficiently distinguish it from any other British bird; and its note, when once identified, can be confounded with no other song. Let any one who wishes to obtain a sight of one, walk anywhere in the country where there are trees, on a bright sunny day in May or June, and listen for a monotonous long-drawn croak, trying to pronounce the syllable 'twe-e-e' or 'bree-eze'. No matter what other birds may be tuning their lays, the harsh monotone of the Greenfinch, if one be near, will be heard among them, harmonizing with none, and suggestive of heat and weariness. In a few seconds it will be repeated, without a shadow of variation either in tone or duration; and if it be traced out, the author of the noise (music I cannot call it) will be discovered perched among the branches of a moderately high tree, repeating his mournful ditty with extreme complacency for an hour together. Very often he takes advantage of the midday silence of the groves, and pipes away without any other competitor than the Yellow Hammer, whose song, like his own, is a constant accompaniment of sultry weather. The Greenfinch has another note which is heard most frequently, but not exclusively, in spring. This is a single plaintive chirp which may be easily imitated by human whistling; it resembles somewhat one of the call-notes of the Canary-bird or Brown Linnet, and, being full and sweet, harmonizes with the woodland chorus far better than the monotonous croak described above. Another of the notes is a double one, and closely resembles that of the 'Pee-wit', hence it is called in some places 'Pee-sweep'. The Greenfinch builds its nest, when not among evergreens, in some tall thick bush either in a hedge or coppice. Less neatly finished than that of the Chaffinch, it is nevertheless a beautiful structure. It is composed externally of a framework of light twigs and roots, interleaved with moss and wool, to which succeeds a denser layer of the same materials lined with hair. It lays five eggs, which are of a light grey colour, almost white, variously speckled with purple, and of a long shape. In winter, Greenfinches congregate in large numbers, and feed together on the seeds of various weeds in stubble fields, or not unfrequently they descend on newly-sown fields of wheat, where they are very troublesome. If disturbed, they rise simultaneously, fly rapidly only a few feet from the ground to another part of the field, but before they alight wheel about several times with singular precision of movement, disappearing from the sight and reappearing according as the dark or light portion of their plumage is turned towards the spectator; and by this peculiarity they may be distinguished from flocks of of other small birds at a great distance. If repeatedly disturbed, they alter their tactics, and take refuge in the top branches of the neighbouring trees until their persecutor has turned his back, when they return to the charge with the same perseverance which they display in the repetition of their summer song. These flocks, probably, are composed of individuals which have banded together in some more northern climate, and emigrated southwards in quest of food; for smaller parties, either unmixed, or associated with Sparrows, Chaffinches, and Buntings, frequent our farmyards and gardens in undiminished numbers.

THE HAWFINCH
COCCOTHRAUSTES VULGARIS

Lore, throat, and plumage at the base of the bill black; crown and cheeks reddish brown; nape ash-grey; back dark reddish brown; wings black, great coverts white; some of the quills truncated at the extremity; under parts light purplish red; tail short. Length seven inches. Eggs light olive-green, with a few brown spots and numerous irregular lines of a lighter tint.