The drongo is a bird of many moods. Silent and inert for months together, during the nesting season he is noisy and alert, not only the first to give warning of the presence of a falcon, but the boldest in chiveying from tree to tree this universal enemy.
He is then particularly partial to an aerial acrobatic performance, unsurpassed for gracefulness and skill, and significant of the joy of life and liberty and the delirious passion of the moment. With a mighty effort, a chattering scream and a preliminary downward cast, he impels himself with the ardour of flight—almost vertically—up above the level of the tree-tops. Then, after a momentary, thrilling pause, with a gush of twittering commotion and stiffened wings preternaturally extended over the back and flattened together into a single rigid fin, drops—a feathered black bolt from the blue—almost to the ground, swoops up to a resting-place, and with bowing head and jerking tail gloats over his splendid feat.
Though denied fluency of utterance, the spangled drongo has no rival in the peculiar character of the notes and calls over which he has secure copyright. The shrill stuttering shriek which accompanies his aerial acrobatic performances, the subdued tinkling tones of pleasure, the jangle as of cracked china, the high-pitched tirade of jarring abuse and scolding at the presence of an enemy, the meek cheeps, the tremulous, coaxing whistles when the young first venture from the nest—each and every sound, unique and totally unlike that of any other bird, indicates the oddity of this sportful member of the crow family.
EYES AFLAME
Perhaps the most interesting and entertaining of all the birds of the island is that commonly known as the weaver or friendly bird, otherwise the metallic starling, the shining calornis of the ornithologist, the "Tee-algon" of the blacks. Throughout the coastal tract of North Queensland this bird is fairly familiar. In these days it could not escape notice and comment, for it is an avowed socialist establishing colonies every few miles. There are four on Dunk Island, and though not permanent residents, spending but little more than half the year with us, they are among the few birds who have permanent homes. In some lofty tree they build perhaps two hundred nests in groups of from two to six. With all these nests weighting its thinner branches the tree may look wearied and afflicted, but it obtains direct benefit from the presence of the birds. The nests, deftly built of tendrils and slender creepers and grass are domed, the entrance being at the side, and so hidden and overhung as almost to escape notice. Each August the birds appear, coming from the north. and until the middle of March, when they take their departure, they do not indulge in many leisure moments. There are the old nests to renovate and new ones to build in accordance with the demand of the increasing population, and loads of fruits and seeds and berries to be conveyed from the jungle to the colony. The shining calornis is a handsome fellow, gleaming black, with purple and green sheen. The live bird differs so greatly from the dull, stuffed specimen of the museum that one is tempted to endeavour to convey by similitude its wonderful radiance. A soap bubble, black yet retaining all its changing lights and flashing reflections, is the nearest approach to a just description, and then there are to specify the rich, red eyes, eyes gleaming like polished gems. Until after the first year of their existence the young are brown-backed, and mottled white and bluish-grey of breast, and would hardly be recognised as members of the colony, but for the shrill notes and restless activity and those flaming eyes—living gems of wondrous radiance, and the eyes epitomise the life of the bird which is all flame and fever.
Twenty or thirty may be peering about in a bloodwood, and with a unanimous impulse and a call in unison they slip through the forest, and shoot into the jungle, flashing sun-glints. Eager, alert, always under high pressure, the business of the moment brooks of no delay. The flocks come and go between the home and the feeding-ground with noisy exclamations and impetuous haste. With whirr of wings and jeering notes they swoop close overhead, wheeling into the wilderness of leaves with the rapidity of thought, and with such graceful precision that the sunlight flashes from their shoulders as an arc of light. Work, hasty work, is a necessity, for their wastefulness is extreme, or, rather, do they not unconsciously perform a double duty, being chief among the distributing agents—industrious and trustworthy though unchartered carders for many helpless trees. When the company darts again out of the jungle, each with a berry in its bill and each shrilly exulting, many a load is dropped by the way, and many another falls to mother earth in the act of feeding the clamorous young. Berries and seeds having no means of self-transportation are thus borne far from parent trees to vegetate in sweet unencumbered soil. Other birds take part in this generous dispersal, but none engage in it so systematically or so openly.
Beneath the tree which is the head centre of the colony is a carpet of debris several inches thick. Old and discarded nests, fragments of unused building materials, the nutmeg with its lacing of coral-red mace, the blue quandong, the remains of various species of figs, hard berries, chillies, degenerated tomatoes, the harsh seed-vessels of the umbrella-tree, samples of every fruit and berry of attractive appearance, however hot and acrid, all go to form a mulching of vegetable matter such as no other tree of forest or jungle gets. Prodigal and profuse as she may be, Nature is the rarest of economists. Out here in the forest is springing up an oasis of jungle, every plant of which owes its origin to the shining calornis.
It must not be thought that all the notes of these most engaging birds, symbolic of light in plumage and in flight, are shrill and strident. When they feed—and they seem always to be feeding or carrying food—their chatter is perpetual and varied in tone. Occasionally a male bird sets himself to beguile the time with song. Then his flame-red eyes flash with ardour, his head is thrown back, a sparkling ruffle appears on his otherwise satiny smooth neck, and the tune resembles that of a well-taught canary—more fluty but briefer. But the song is only for the ears of those who know how to overcome timidity and shyness. Birds naturally so impetuous are restless and uneasy under observation. One must pose in silence until his presence is forgotten or ignored. Then the delicious melody, the approving comments of the songster's companions, and the efforts of ambitious youngsters to imitate and excel, are all part of a quaint entertainment.
THE NESTFUL TREE
All the forest brood do not plot mutual slaughter. Some live in strict amity. Here in the Moreton Bay ash, taken advantage of by the shining calornis, a white-headed, rufous-backed sea-eagle nests, and the graceful, fierce-looking pair come and go among the glittering noisy throng without exciting any special comment. Of course it would be impossible to detect any certain note of remonstrance, for the smaller birds are generally commenting on something or other in acidulous tones.