Part 15

The POMPEO (_Trogon viridis_) is of a splendid steel-blue, shimmering with green on the crown of the head, nape, sides of the throat, and upper breast; the back, shoulders, and upper wing-covers are of a metallic green, shading into blue on the rump; the belly and vent are bright, deep yellow. The exterior feathers of the wing-covers and the quills are black, the latter edged with white; the centre tail-feathers are green, bordered with black towards the extremity. The next in order are black with a green edge; the three outermost are white at the tip and on the exterior web. In the female the back is deep grey, the belly pale yellow, and the feathers of the wing-covers delicately striped with white. The eyes of both sexes are brown, the beak pale greenish white, and foot blackish grey. This species is twelve inches and three-quarters long, and eighteen inches and a half broad; the wing measures five inches and three-quarters, and the tail five inches and one-third.

The Pompeo is commonly met with in the forests of North Brazil and Guiana; and, according to the Prince von Wied, is most numerous in the plantations near the coast, where its short, monotonous cry is to be heard in all directions. The habits of this species closely resemble those of the Surukua. We are told, on the authority of Schomburghk, that the Pompeo consumes seeds and fruit, as well as insects, and that the nest, which is supported upon thin branches or twigs, is very similar to that of the Wild Pigeon; but for the accuracy of this latter statement we cannot vouch. The capture of these birds, which are usually met with in pairs or small parties, is attended with but little difficulty, as they are quite fearless of men; the Brazilians, we are told, are constantly in the habit of obtaining a meal at their expense by an imitation of their call-note, which at once brings down the unsuspecting victim, and thus affords the hunter or traveller an appetising repast.

THE TOCOLORO.

The TOCOLORO (_Prionotelus temnurus_), a species inhabiting Cuba, differs from all its congeners in the remarkable formation of its graduated tail, the feathers of which become gradually broader towards the tip, where the web takes the form of a crescent. The top of the head, nape, back, and upper breast are pale grey, and the belly a rich cinnabar-red; the quills are brown, striped with white, the feathers of the large wing-covers steel-blue, shaded with white. The centre tail-feathers are of a deep metallic green, the next in order blueish green, and the three outermost tipped with white. The eye is of a brilliant reddish yellow, the foot blackish brown, and the beak deep brown, with bright red lower mandible. The length of the body is ten inches, and the span of the wings fifteen inches, the wings and tail each measure five inches.

The Tocoloro is common in some parts of Cuba, and in its habits closely resembles the members of the group already mentioned. D'Orbigny describes its cry as resembling the syllables "to-corr," long drawn out, the first note being shrill and powerful, while the second is deep and low. Flowers, fruit, and seeds appear to constitute its principal means of subsistence. The period of incubation takes place in April, May, and June; the nest is usually made in holes in trees, those excavated by the Woodpecker being preferred. The eggs are round, pure white, and from three to four in number.

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The BEAUTIFUL-TAILED TROGONS (_Calurus_), as the largest members of this family are called, are at once recognisable by their comparatively broad, flat head and shallow beak, which is compressed and very decidedly-hooked at its tip. The plumage of the wings and tail is remarkably developed, and of great beauty.

THE PEACOCK TROGON.

The PEACOCK TROGON (_Trogon calurus_) has the central tail-feathers of great length. The feathers of the head, throat, upper breast, and wing-covers are of a bright, metallic green, and gleam with a copper-red and violet lustre; the lower breast, belly, rump, and thighs are purplish red; the inner side of the wings, the quills, and tail are black. The eye is a dull, carmine-red, and the bare patch that surrounds it dark grey; the beak is deep red, tipped and edged with yellow, and the foot brown and yellow. The female resembles her mate, but is somewhat less bright in hue. The length of this bird is fourteen inches and a quarter, and its breadth twenty-two inches and a half. The wing measures seven inches and a quarter, and the tail seven inches; the centre tail-feathers exceed the rest by six inches and a half. Spix first discovered this bird at Rio Negro.

THE BEAUTIFUL TROGON.

The BEAUTIFUL TROGON (_Calurus Pharomacrus_ or _C. antisianus_)--(See Coloured Plate XXV.)--is recognisable from the Peacock Trogon by a bunch of hair-like feathers on the region of the beak, and by the inferior length of the long feathers on the wing and tail. The coloration of the plumage is almost identical, except that the tail-feathers are quite white underneath, and the beak of a yellowish shade. The body is fourteen inches long; the wing measures seven inches and a half, and the tail six inches and a half. D'Orbigny discovered this bird in Bolivia, where it frequents the vicinity of the rivers.

THE QUESAL, OR RESPLENDENT TROGON.

The QUESAL, or RESPLENDENT TROGON (_Calurus paradiseus_, or _C. resplendens_), the most magnificent of all these beautiful birds, is adorned with a helmet-like crest, and possesses a most extraordinary development of the feathers on the shoulders, which droop over the wings and tail. The mantle and upper breast are of a brilliant, golden green. The under side is bright carmine-red. The eye is deep nut-brown, the eyelid black, the beak yellow, with a brownish base; the foot brownish yellow. The female has a smaller crest, and the long feathers in her tail scarcely exceed the other tail-feathers in length. In both sexes the head, throat, and upper breast are dark green; the back, shoulders, and upper tail-covers light green; and the lower breast and belly greyish brown. The rump is bright red, the centre tail-feathers are black, those at the exterior white, marked with black. The length of the body is sixteen inches; the wing measures eight inches and one-third, and the tail eight inches and a half. The longest feathers in the male bird's tail exceed the rest by twenty-five inches.

The Quesal inhabits Mexico and Central America; and, according to Salvia, is met with in all such woods and forests as are at a height of about 6,000 feet above the level of the sea. In these situations it leads a quiet and dreamy existence, perching lazily in the trees, and scarcely exerting itself to do more than slowly turn its head from side to side, or raise and waft its graceful, drooping plumes. Only in the air, however, is the beauty of the Quesal seen in its full perfection; and as it floats rapidly but gently along, with feathery train outspread, those who have witnessed its elegant movements will admit that amongst all the inhabitants of the Western Hemisphere it is without a rival. The voice of this bird is capable of producing a great variety of sounds; the principal note, however, is a piping tone, which commences softly, and gradually swells into a loud but not unpleasing cry. Fruit and insects appear to form its principal means of subsistence. We learn from Owen that he found a Quesal's eggs deposited in a hollow tree, about six feet from the ground. Salvia is of opinion that the male does not assist in the work of incubation.

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THE CUCKOOS.

THE CUCKOOS (_Cuculidæ_) constitute a very numerous family, characterised by a slender body, wings of moderate length, a long, graduated tail, composed of from eight to twelve feathers, a slightly-curved, short, or medium-sized beak, with sharp margins, and comparatively long, powerful feet furnished with short toes. The coloration of the plumage is too various to admit of any general description.

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The HONEY GUIDES (_Indicator_) are a group of the above birds recognisable by their comparative compactness of build, long wings, short tail, and strong beak. The beak, which does not equal the head in length, is almost straight, and compressed at its hooked tip; the small powerful legs have the tarsi shorter than the outermost of the strong toes; the long and pointed wing, in which the third quill exceeds the rest in length, is usually of considerable breadth; the tail, composed of twelve feathers, is rounded at its sides, and slightly incised at its centre. The plumage is thick and smooth.

The members of this family are for the most part of African origin, only two species being met with elsewhere, namely, in Southern Asia. Everywhere the Honey Guides occupy woodland districts, and live either in pairs or small flocks, which fill the air with their loud and pleasing cries, as they flutter from tree to tree. According to Heuglin, the most peculiar characteristic of these birds is their strange habit of endeavouring to attract the attention either of man or of some of their formidable four-footed neighbours, whenever they have the luck to discover an attractive object, such as a piece of carrion, teeming with a rich supply of insects, or a swarm of bees busy at their work. They are particularly fond of honey, though they frequently pay dearly for their venturesome attempts to rob the combs, being often stung to death by the angry swarm. When this fate attends a marauder, the bees cover the body with a vault of wax, and thus prevent any annoyance from its presence. The flight of the Honey Guides is heavy, and only capable of being sustained for a short distance, but they run upon the trunks and branches of trees with the utmost facility. Like the Cuckoo, the members of this group build no nest, but introduce their eggs into that of some Woodpecker or Oriole.

THE WHITE-BEAKED HONEY GUIDE.

The WHITE-BEAKED HONEY GUIDE (_Indicator albirostris_) is greyish brown on the mantle, and whitish grey on the under side. The throat is black; the region of the ear undivided, and indicated by a greyish white spot; a portion of the shoulder-feathers is streaked with black; the quills are greyish brown, the wing-covers broadly edged with white, and the shoulders enlivened by a yellow patch; the centre tail-feathers are brown, the next in order brown on the outer and white on the inner web, whilst those at the exterior are white tipped with brown. The body is yellowish white, and the foot brown. The body is six inches and a half in length; the wing measures four inches and a half, and the tail two inches and a half.

This species, which is met with from Southern Africa to sixteen degrees north latitude, subsists almost entirely upon wild honey, and has obtained its name from the fact that it frequently materially assists the natives in their search for the combs by flying before them and constantly uttering its sharp, peculiar cry. In the African deserts it is heard morning and evening, and is eagerly listened for by the natives, who at once reply to it, and hasten to the spot indicated. No sooner does the bird perceive that its summons is responded to than it perches upon the tree that contains the desired hive, and, should its human assistant not hurry fast enough to satisfy its impatience, flies backwards and forwards until the exact spot has been plainly pointed out. During the time occupied by the native in rifling the hive, the Honey Guide remains perched in the vicinity, waiting for the share of the spoil, which the grateful Hottentot never fails to grant it. This remarkable habit is of great service to the poor natives, who regard these birds with especial favour, and are much incensed if they are wantonly killed. According to Hartlaub, the female deposits her one glossy white egg upon the bare ground, and when she has succeeded in finding a strange nest into which it can be introduced, bears it thither, having previously ejected one of the owner's eggs in order to make room for her own offspring. Verreaux informs us that the mother resumes the care of her young in about a month's time, compelling it to leave its foster-parents.

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The CUCKOOS (_Cuculus_) are characterised by a slightly-curved, thin beak, which is broad at its base, and almost equals the head in length; the long wings, in which the third quill is longer than the rest, are narrow and pointed; the long tail, composed of ten feathers, is either wedge-shaped or rounded at its extremity. The short or moderate-sized feet have the toes placed in pairs; the thick plumage is very similarly coloured in the two sexes, but the young differ considerably in appearance from the adult birds.

The members of this family are spread over the whole of the Eastern Hemisphere and New Holland, being particularly numerous in Africa and India, while the more northern portions possess but one species. All, without exception, are inhabitants of the woods, and rarely leave the shelter of their favourite trees, except during the period of migration, or when, as with the more southern species, they are wandering for a short season over the face of the country. In disposition they are timorous, restless, and extremely averse to associate with other birds, indeed, they frequently avoid the society of their own congeners. Their life may be described as an incessant and noisy search for food, in pursuit of which they hurry rapidly from tree to tree and place to place. Insects and larvæ afford them their principal means of subsistence, and hairy caterpillars (avoided by most other birds) are with them favourite tid-bits--the hairs from the bodies of these caterpillars adhere to the coats of the Cuckoo's stomach, and become, as it were, embedded by the process of digestion. Many also consume small reptiles. Some species prepare suitable receptacles for their young; but the greater number deposit their eggs in the nests of other birds.

THE COMMON CUCKOO.

The COMMON CUCKOO (_Cuculus canorus_) represents a group possessing a slender body, a small, weak, slightly-curved beak, long, pointed wings, a long, rounded tail, short, partially-feathered feet, and plumage of a sombre hue. The male is deep ash-grey, or greyish blue, on the mantle, and greyish white, marked with black, on the under side; the neck, cheeks, throat, and the sides of the neck, as far down as the breast, are pure ash-grey; the quills of the wings leaden black, and those of the tail black, spotted with white. The eye is of a bright yellow; the beak black, but yellowish towards its base; and the foot yellow. The female resembles the male, but has scarcely perceptible reddish stripes on the back and under side of the neck. The length of the male is fourteen inches; breadth twenty-four and a half; length of wing, nine inches; length of tail, seven and three-quarter inches. The female is about an inch shorter.

This Cuckoo frequents almost every part of Europe, Asia, and Africa, and breeds in all northern portions of the Eastern Hemisphere; it only visits India, China, Java, the Sundainu Islands, and South-western Africa in the course of its migrations. In England it usually appears about the middle of April.

The Common Cuckoo may be regarded as the most flighty, restless, and lively member of this sprightly family; from morning till night he is constantly on the move, and is as hungry as he is active and clamorous. His flight is light, elegant, somewhat resembling that of a Falcon; but no sooner has his journey come to an end, than he alights on a thick branch of the nearest tree, and at once begins to look about him in search of food. Should an attractive morsel be in sight, he swoops upon it in an instant, and having caught and devoured it, by a stroke or two of his powerful wings he again returns to the branch he has just quitted, or else flies off to a neighbouring tree, immediately to repeat the same performance. It is, however, only in his powers of flight that the Cuckoo is eminently gifted; he walks upon the ground with difficulty, and is quite unable to climb. In spring-time he is indefatigable in making heard his well-known notes, "Cuckoo, cuckoo," which occasionally he will change to a softly-uttered "Quawawa," or "Haghaghaghag," while the voice of the female somewhat resembles a peculiar laugh or gentle twitter, but poorly represented by the syllables "Kwikwikwik." It was well-known, even to ancient writers, that the female Cuckoo, instead of building a nest for the reception of her progeny, lays her eggs in the nests of other birds, to whom she altogether entrusts the rearing of her young ones.

"The Cuckoo," says Aristotle, "deputes the incubation of her eggs and the nurture of the young ones to which they give birth to the bird in whose nest the eggs happen to be laid. The foster-father, as we are told, throws his own offspring out of their nest and leaves them to die of hunger, while he devotes himself entirely to providing for the young Cuckoo. Others say that he kills his own nestlings to feed the young intruder with their bodies, the young Cuckoo being so beautiful that even the mother who owns the nest despises and sacrifices her own brood on his behalf. Narrators, however, are not quite agreed as to who is the real destroyer of the young birds; some say that it is the old Cuckoo who comes back again to eat the little family of the too hospitable pair, while others assert that it is the young Cuckoo who casts out of the nest all his foster brothers and sisters, leaving them to die of starvation, while others again declare that the young Cuckoo, being the strongest, kills and devours all the rest."

"In thus providing for his children," continues Aristotle, "the Cuckoo does quite right, for he knows what a coward he is, and that he would never be able to defend them; indeed, so cowardly is he that all the little birds amuse themselves by pinching and pecking at him."

It will be at once evident that in the above account of the habits of the Cuckoo there is a great deal of truth, although much that is surmised is devoid of foundation. The main facts that have been established by trustworthy observation relative to the breeding of the Cuckoo are in themselves sufficiently curious, and have no need of fictitious circumstances to make them interesting. They may be briefly stated as follows:--The female Cuckoo undoubtedly deposits her eggs in the nest of some other bird, not of any particular species, but of several; indeed, upwards of fifty have been enumerated as entitled to the honour of rearing the young Cuckoos. Secondly, it has been observed that the eggs of the Cuckoo differ remarkably from each other; indeed, more so than is the case in any other known species; and, moreover, that a Cuckoo's egg taken from the nest in which it has been placed is found strikingly to resemble the eggs laid by the owner of the nest. Thirdly, the Cuckoo only lays a single egg in the selected spot, and this is invariably deposited in a nest already containing eggs belonging to its proper owner.

The behaviour of the females while thus employed in laying their eggs is peculiar. No sooner do these birds arrive in the early spring than the males begin to make the woods resound with their well-known call, where they are soon joined by their mates, of whose coyness under the circumstances they can have little cause for complaint, and as soon as the female has an egg ready for laying, away she flies in search of a nest in which to deposit her burden. On these expeditions she is not accompanied by the male Cuckoo, with whose company, indeed, she seems by no means desirous of being troubled. Her search after a suitable nest is always made on the wing, and her cleverness in finding the object of her journey, however well it may seem to be hidden from observation, is at least remarkable. Quite contrary to her usual shyness, at such times she will unhesitatingly approach quite close to human habitations, and even enter buildings, such as barns and outhouses. If the shape and situation of the discovered nest is such as to allow her to do so, she places herself upon it and lays an egg, but if such is not the case she lays her egg upon the ground, and then taking it in her beak drops it into the nest. Sometimes it happens that she has considerable difficulty in introducing her egg into the nest, owing to the smallness of the aperture, and occasionally the bird has been captured during her endeavours to overcome the difficulty. Sometimes it has happened that two Cuckoos' eggs, of different colours, have been found in the same nest.

"It is wonderful to observe," says Bechstein, "what great apparent delight the birds show when they see a female Cuckoo approach their abode. Instead of leaving their eggs, as they do when disturbed by the approach of other animals, they seem quite beside themselves for joy. The little Wren, for example, when brooding over its own eggs, immediately quits its nest on the approach of the Cuckoo, as though to make room to enable her to lay her egg more commodiously. Meanwhile she hops round her with such expressions of delight that her husband at length joins her, and both seem lavish in their thanks for the honour which the great bird confers upon them by selecting their nest for its own use."

Although the above extract sounds very well, with all deference to Herr Bechstein, we are compelled to say that it is unfortunately not true. All the birds that we have seen who have had the very doubtful honour of having a Cuckoo's egg palmed upon them as their own, have seemed to testify in a striking manner their anguish at the threatened occurrence and their unmistakable desire to drive the Cuckoo away. So far from coming as a welcome visitor, the mother Cuckoo comes like a thief in the night; and no sooner has she laid her egg than she hastily takes her departure, as if quite conscious of the unfriendly character of her visit. However this may be, there is no doubt that the foster-parents brood over the Cuckoo's egg with the same assiduity as over their own; and it is only when the eggs of both are hatched that the real character of the intruder begins to show itself, doubtless to the great terror and dismay of the proper owners of the nest.

"Two Cuckoos and a Hedge Sparrow," writes Dr. Jenner, "were hatched in the same nest this morning. In a few hours after, a combat began between the Cuckoos for the possession of the nest, which continued undetermined until the next afternoon, when one of them, which was somewhat superior in size, turned out the other, together with the young Hedge Sparrow and an unhatched egg. This contest was very remarkable. The combatants alternately appeared to have the advantage, as each carried the other several times to the top of the nest, and then sank down again, oppressed by the weight of its burden, till at length, after various efforts, the strongest prevailed, and was afterwards brought up by the pair of Hedge Sparrows."