The deep crimson of the outside of the rim was merely a reflection tint, and vanished when the sun shone directly through; but the masses of sharp spines were very real, and quite efficient in repelling boarders. The leaf offered safe haven to any creature that could leap or fly to its surface; but its life would be short indeed if the casual whim of every baby crocodile or flipper of a young manatee met with no opposition.
Insects came from water and from air and called the floating leaf home, and, from now on, its surface was one of the most interesting and busy arenas in this tropical landscape.
In late September I spread my observation chair at the very edge of one of the dark tarns and watched the life on the leaves. Out at the center a fussy jacana was feeding with her two spindly-legged babies, while, still nearer, three scarlet-helmeted gallinules lumbered about, now and then tipping over a silvery and black infant which seemed puzzled as to which it should call parent. Here was a clear example, not only of the abundance of life in the tropics, but of the keen competition. The jacana invariably lays four eggs, and the gallinule, at this latitude, six or eight, yet only a fraction of the young had survived even to this tender age.
As I looked, a small crocodile rose, splashed, and sank, sending terror among the gallinules, but arousing the spur-wing jacana to a high pitch of anger. It left its young and flew directly to the widening circles and hovered, cackling loudly. These birds have ample ability to cope with the dangers which menace from beneath; but their fear was from above, and every passing heron, egret, or harmless hawk was given a quick scrutiny, with an instinctive crouch and half-spread wings.
But still the whole scene was peaceful; and as the sun grew warmer, young herons and egrets crawled out of their nests on the island a few yards away and preened their scanty plumage. Kiskadees splashed and dipped along the margin of the water. Everywhere this species seems seized with an aquatic fervor, and in localities hundreds of miles apart I have seen them gradually desert their fly-catching for surface feeding, or often plunging, kingfisher-like, bodily beneath, to emerge with a small wriggling fish—another certain reflection of overpopulation and competition.
As I sat I heard a rustle behind me, and there, not eight feet away, narrow snout held high, one tiny foot lifted, was that furry fiend, Rikki-tikki. He was too quick for me, and dived into a small clump of undergrowth and bamboos. But I wanted a specimen of mongoose, and the artist offered to beat one end of the bush. Soon I saw the gray form undulating along, and as the rustling came nearer, he shot forth, moving in great bounds. I waited until he had covered half the distance to the next clump and rolled him over. Going back to my chair, I found that neither jacana, nor gallinules, nor herons had been disturbed by my shot.
While the introduction of the mongoose into Guiana was a very reckless, foolish act, yet he seems to be having a rather hard time of it, and with islands and lily-pads as havens, and waterways in every direction, Rikki is reduced chiefly to grasshoppers and such small game. He has spread along the entire coast, through the cane-fields and around the rice-swamps, and it will not be his fault if he does not eventually get a foothold in the jungle itself.
No month or day or hour fails to bring vital changes—tragedies and comedies—to the network of life of these tropical gardens; but as we drive along the broad paths of an afternoon, the quiet vistas show only waving palms, weaving vultures, and swooping kiskadees, with bursts of color from bougainvillea, flamboyant, and queen of the flowers. At certain times, however, the tide of visible change swelled into a veritable bore of life, gently and gradually, as quiet waters become troubled and then pass into the seething uproar of rapids. In late afternoon, when the long shadows of palms stretched their blue-black bars across the terra-cotta roads, the foliage of the green bamboo islands was dotted here and there with a scattering of young herons, white and blue and parti-colored. Idly watching them through glasses, I saw them sleepily preening their sprouting feathers, making ineffectual attempts at pecking one another, or else hunched in silent heron-dream. They were scarcely more alive than the creeping, hour-hand tendrils about them, mere double-stemmed, fluffy petaled blossoms, no more strange than the nearest vegetable blooms—the cannon-ball mystery, the sand-box puzzle, sinister orchids, and the false color-alarms of the white-bracted silver-leaf. Compared with these, perching herons are right and seemly fruit.
As I watched them I suddenly stiffened in sympathy, as I saw all vegetable sloth drop away and each bird become a detached individual, plucked by an electric emotion from the appearance of a thing of sap and fiber to a vital being of tingling nerves. I followed their united glance, and overhead there vibrated, lightly as a thistledown, the first incoming adult heron, swinging in from a day's fishing along the coast. It went on and vanished among the fronds of a distant island; but the calm had been broken, and through all the stems there ran a restless sense of anticipation, a zeitgeist of prophetic import. One felt that memory of past things was dimming, and content with present comfort was no longer dominant. It was the future to which both the baby herons and I were looking, and for them realization came quickly. The sun had sunk still lower, and great clouds had begun to spread their robes and choose their tints for the coming pageant.
And now the vanguard of the homing host appeared,—black dots against blue and white and salmon,—thin, gaunt forms with slow-moving wings which cut the air through half the sky. The little herons and I watched them come—first a single white egret, which spiralled down, just as I had many times seen the first returning Spad eddy downward to a cluster of great hump-backed hangars; then a trio of tricolored herons, and six little blues, and after that I lost count. It seemed as if these tiny islands were magnets drawing all the herons in the world.