Tropic Days | Page 8

day, it has been noticed that the ants never seem to resent interruptions or to be vexed by them. If they happen to get on the hands or fingers, they submit to be restored to the gate; but go to the formicary on the mango-tree half a dozen yards away and offer a friendly finger, and you will find dozens of pugnacious individuals ready to defend their home. Do they recognise that they are but pilgrims of the fence, enjoying certain rights on sufferance, that it is a path of peace on which belligerents must not intrude, a neutral tract under the custody of the law of nations, which ants, as well as men, must respect? Whatsoever the reason, the deportment of the truculent ant on the highway is that of an upholder of peace at any price. It is to be doubted if the animal world holds more illustrious examples of heroism than a green tree-ants' nest. Two or three individuals may be despised as long as their assaults are confined to the less sensitive parts of the body; but let a huge colony up among the branches of an orange-tree be disturbed, and the first army corps instantly mobilised, and it will not be cowardly hastily to retreat. So eager for the fray are the warriors, so well organised, so completely devoted to the self-sacrificing duty of protecting the community, that two distinct methods of advance and attack are exercised forthwith in the midst of what appears to be calamitous confusion. Swarming on the extremity of the branches among which the formicary is constructed, the defenders, projecting their terminal segments as far into space as possible, eject formic acid in the direction of the enemy. Like shrapnel from machine guns, the liquid missile sweeps a considerable area. Against the sunlight it appears as a continuous spray, and should one infinitesimal drop descend into the eye the stoutest mortal will blink. Attacks are made singly and in detachments. Heroes actually hurl themselves from the branches, and, failing to reach the enemy, run along the ground and, scaling his legs, inflict punishment on the first convenient patch of unprotected skin. Detachments muster in blobs, fall in a mass to the ground, and charge. If one of these forlorn hopes happens to be successful, the observant man will retire with little of his dignity remaining.
It is interesting to note how readily birds acquire tastes for the sweet fruits which man cultivates. One of the honey-eaters, the diet of which ranges from nectar to the juice of one of the native cucumbers, as bitter as colocynth, has become an ardent advocate for the thorough ripening of bananas. While on the plant the fruit is not appreciated, but after the bunch has been hung for a week or so and the first fruits are changing colour the bird is enthusiastic. Formerly bunches were ripened in a thatched building for the the most part open, and the bird got the very best of the bunch. Now the process takes place where the bird has to venture through wire-netting. It has no fear, entering without ceremony, loudly complaining when inadvertently disturbed, and flying to other parts of the house to express remonstrance when the supply is exhausted.
Scarcity of surface-water sharpens the powers of observation of some birds and increases the trustfulness of certain species towards human beings in a region wherein they are held to have rights on equality with those of their superiors in the animal world. For years, during the few weeks which generally intervene between the disappearance of accustomed water reserves and the beginning of the wet season, with its super-abundance, the metallic starlings have been wont to obtain refreshment from a hollow far up a huge tea-tree, the supply in which seemed to be inexhaustible. The tyrant's plea, necessity, ordained the destruction of the never-failing tree, and now the starlings descend by the hundred into the deep and shady ravine whence water is pumped, and drink also from the cattle-trough and bathe therein with noise and excitement of happy children on the beach. It is quite within the mark to compute the starlings by the hundred. The trough is edged nearly all day long by thirsty or dirty birds, while scores sit round among the shrubs waiting turn and commenting on the frolics and splashings of others in excitable tones. When, perhaps, there are but a poor dozen or so round the trough, you may chance to see the birds in attitudes more varied than those of Pliny's doves, and catch the shadows of burnished necks darkening the water, as in that famous mosaic, and even the glistening reflection of the red, jewel-like eyes. Other birds, with far less assurance and shrill clamour than the lovely starlings, visit the trough regularly