Large numbers of Rooks are destroyed during their migrations, which are made in flocks of incredible magnitude; whilst flying in this manner from place to place they may sometimes be seen to delay their course for half an hour at a time, merely to enjoy the pleasure of hovering or performing a variety of evolutions on the wing, descending somewhat in their flight as they pass over mountains, and soaring high into the air when about to cross lowland districts; sometimes, as though again wishing to alight, they plunge directly earthwards, falling like a lifeless mass from two hundred feet above the ground, and then fly gently onwards for a short distance before again ascending to continue their journey. In the southern part of Europe, and in the north of Africa, the flocks are seldom met with of the enormous size above described, as before reaching so great a distance these large bodies have separated, and gone to spread themselves in less destructive numbers over the countries they select as winter quarters; despite this precaution, thousands perish from starvation, and we ourselves have seen hundreds covering the ground near Suez, the weary travellers not having found the food which they had come so far to seek.
THE JACKDAW.
The Jackdaw (Monedula turrium) is a very small species of Raven, distinguished from its congeners by its short, strong, straight beak, which is but slightly curved. The length of this bird does not exceed twelve inches, or twelve and three-quarters, its breadth is from twenty-four to twenty-five inches, the wing measures eight and a half inches, and the tail five inches. The plumage is deep black upon the forehead and top of the head, the back of the head and nape being dark grey; the upper part of the body is blue black, and the lower portions slate colour or pale black. The young are recognisable by their lighter tints and the grey colour of the eye. The Jackdaw is found throughout most of the countries of Europe and in many parts of Asia, occupying some places in large numbers, and entirely avoiding other districts with a fastidiousness for which we are unable to account: steeples, towers, or old buildings are the situations it prefers for building purposes, but it will also make its nests upon high trees or even shrubs. The disposition of this species is lively and its habits extremely social; indeed, it may be said to possess the gifts of the Crow, with but few of its disagreeable qualities. When upon the wing the flight of the Jackdaw is not unlike that of a Pigeon, and its mode of rising, falling, or performing a variety of evolutions remarkably graceful and easy. Its voice is capable of considerable development, and, like many other members of this family, it has but little difficulty in imitating human speech and other sounds; it chatters almost incessantly during the breeding season, but not offensively, for its tones are soft and very varied. Large quantities of insects, snails, and worms are devoured by these useful birds: they will seek their food in the streets or follow in the wake of the ploughman as he turns up the clods and lays the concealed grubs bare to their hungry beaks; they hunt for mice, young birds, and eggs with great dexterity, and will also feed upon roots, leaves, corn, and fruit.
Late in the autumn the Jackdaws leave us for warmer regions in company with the Rook, though but rarely journeying as far as that bird. The spring is usually far advanced before they return to their native haunts and commence their work of building or repairing their nests, which are extremely rude, being roughly formed of twigs or straw, and lined with hair, feathers, or hay. During these building operations the settlement is a constant scene of quarrelling, one bird stealing from another with the greatest audacity and cunning, and taking possession not only of the materials but of the places selected by their neighbours as snug and desirable localities. The young are fed upon insects and tended with great affection by their parents, who will also defend them from an enemy with much courage. Should an Owl or Buzzard venture to approach the colony, it is received with loud cries and immediately driven off by the infuriated Jackdaws, who often pursue the intruder to the distance of some miles. Cats, Martens, Falcons, and Hawks are numbered amongst the most formidable of the enemies with which they have often to contend; the two first of these marauders plundering their nests, while the latter attack both old and young birds. Of all the members of the family, none are so well fitted for domestication; large numbers are caught annually for this purpose, as their great intelligence and pleasing disposition render them favourites with all lovers of the feathered tribes.
THE GLOSSY CROW.
The Glossy Crow (Anomalocorax splendens) is an inhabitant of the East Indies, and one of the most elegant of the many representatives of the family met with in that part of the world. In this bird the wings are so short as scarcely to reach the end of the long tail, and it has for this reason been classed as forming a distinct subdivision of the group to which it belongs. The length of the Glossy Crow is from fifteen to eighteen inches, seven inches of which are included in the tail; and the wing measures about eleven inches. The plumage upon the front of the head is a brilliant black, the back of the head, nape, and upper part of the throat are lively grey; the back, wings, and tail black, lighted up by a rich violet tint like tempered steel; the chin, breast, and sides of the neck are black, with a metallic lustre; the breast is dark grey, and the middle of the belly a dusky black, lightly marked with steel blue.
Jerdon tells us that the name given to this species has been entirely misapplied, as many of its congeners rival it in the brilliant gloss upon their coats. Every part of India affords a home to this beautiful bird, which is met with in all the towns and villages from Ceylon to the Himalaya Mountains, living upon the most friendly terms with man during the day, and passing the night in company with not merely its own kind, but with large parties of Parrots and Minas, amongst whom, as may be easily imagined, disputes and fights are of constant occurrence, and anything like quiet or harmony impossible. At dawn the whole party are awake, and at once commence their preparations for the business of the day by carefully preening their feathers, chattering with the utmost vivacity among themselves. The flock then divides into small parties of from twenty to forty birds, and fly over the surrounding country often to a distance of ten miles from the place where they slept. It may literally be said of the Glossy Crows that they live upon the crumbs that fall from man's table, for many of the natives take their meals outside their huts, and at such times are generally surrounded by these birds, who seize every morsel as it drops; indeed, so well do they understand what the lighting of a fire indicates, that the first appearance of smoke will attract them, and keep them hovering about the spot until the expected food is ready to be eaten. Others, again, will seek for crabs, fish, frogs, or insects, which they consume in large quantities, or follow Gulls and Sea Swallows in order to share their prey; some will search the fields for grubs, or relieve the cattle from the parasites by which they are tormented; others spend the day in robbing the banana-trees of their fruit, or hunt the winged Termites in company with Bee-eaters, Kites, or even Bats. During the heat of the summer they may be seen sheltering themselves under some thickly-foliaged branch from the power of the sun, and with beak wide open, seem to pant for a breath of cool fresh air. The breeding season extends from April to June; and the nests, which are placed upon trees or the corners of a house, are formed of twigs, lined with a bed of some soft material. The brood consists of four greenish-blue eggs (spotted and marked with brown), this number being frequently increased by the addition of a Cuckoo's egg, that bird seeming to have a decided preference for their nests when in search of a home for her offspring.
The flight of these Crows is light and tolerably rapid. When pursued by an enemy they are very dexterous in eluding its attacks—indeed, their courage, intelligence, and cunning are so highly developed as to render them most interesting. Blyth tells us that they disport themselves about the houses with great confidence, running hither and thither in a constant bustle, as though each moment was of value and could not be wasted in idle loitering, at the same time uttering their cry, which is unbearably noisy. The inhabitants of Ceylon observe these birds with great attention, and have many superstitions based upon the course of their flight, the kind of trees on which they settle, or the numbers in which they appear—indeed, the proceedings of the Glossy Crow would seem to be regarded with the same attention and anxiety as was the flight of ominous birds amongst the Greeks and Romans. The Dutch, during the time that they possessed Ceylon, also showed considerable favour to this species, and decreed heavy punishments for those who killed them, believing them of great service in promoting the growth of cinnamon by devouring the ripe fruit and scattering the undigested seeds over the surrounding country.
THE NUTCRACKER (Nucifraga caryocatactes).