In spite of their grown-up looks and manners, they did not lose their appetite; and from breakfast, at the unnatural hour of half past four in the morning, till a late supper, when so dark that I could see only the movement of feeding like a silhouette against the white clouds, all through the day, food came to the nest every two minutes or less. Think of the work of those two birds! Every mouthful brought during those fifteen and a half hours required a separate hunt. They usually flew out to a strip of low land, where the grass was thick and high. Over this they hovered with beautiful motion, and occasionally dropped an instant into the grass. The capture made, they started at once for the nest, resting scarcely a moment. There were thus between three and four hundred trips a day, and of course that number of insects were destroyed. Even after the salt bath, which one bird took always about eleven in the morning, and the other about four in the afternoon, they did not stop to dry their plumage; but simply passed the wing feathers through the beak, paying no attention to the breast feathers, which often hung in locks, showing the dark part next the body, and so disguising the birds that I scarcely knew them when they came to the nest.

The bath was interesting. The river, so called, was in fact an arm of the Great South Bay, and of course salt. To get a bath, the bird flew directly into the water, as if after a fish; then came to the fence to shake himself. Sometimes the dip was repeated once or twice, but more often bathing ended with a single plunge.

Two weeks had passed over their heads, and the three little kings had for several days dallied with temptation on the brink before one set foot outside the nest. Even then, on the fifteenth day, he merely reached the door-step, as it were, the branch on which it rested. However, that was a great advance. He shook himself thoroughly, as if glad to have room to do so. This venturesome infant hopped about four inches from the walls of the cottage, looked upon the universe from that remote point, then hurried back to his brothers, evidently frightened at his own boldness.

On the day of this first adventure began a mysterious performance, the meaning of which I did not understand till later, when it became very familiar. It opened with a peculiar call, and its object was to rouse the young to follow. So remarkable was the effect upon them that I have no doubt a mob of kingbirds could be brought together by its means. It began, as I said, with a call, a low, prolonged cry, sounding, as nearly as letters can express it, like "Kr-r-r-r! Kr-r-r-r!" At the same moment, both parents flew in circles around the tree, a little above the nest, now and then almost touching it, and all the time uttering the strange cry. At the first sound, the three young kings mounted the edge, wildly excited, dressing their plumage in the most frantic manner, as if their lives depended on being off in an instant. It lasted but a few moments: the parents flew away; the youngsters calmed down.

In a short time all the nestlings were accustomed to going out upon the branch, where they clustered together in a little row, and called and plumed alternately; but one after another slipped back into the dear old home, which they apparently found it very hard to leave. Often, upon coming out of the house, after the imperative demands of luncheon or dinner had dragged me for a time away from my absorbing study, not a kingbird, old or young, could be seen. The oak was deserted, the nest perfectly silent.

"They have flown!" I thought.

But no: in a few minutes small heads began show above the battlements; and in ten seconds after the three little kings were all in sight, chirping and arranging their dress with fresh vigor, after their nap.

Not one of the young family tried his wings till he was seventeen days old. The first one flew perhaps fifteen feet, to another branch of the native tree, caught at a cluster of leaves, held on a few seconds, then scrambled to a twig and stood up. The first flight accomplished! After resting some minutes, he flew back home, alighting more easily this time, and no doubt considered himself a hero. Whatever his feelings, it was evident that he could fly, and he was so pleased with his success that he tried it again and again, always keeping within ten or fifteen feet of home. Soon his nest-fellows began to follow his example; and then it was interesting to see them, now scattered about the broad old tree, and then, in a little time, all back in the nest, as if they had never left it. After each excursion came a long rest, and every time they went out they flew with more freedom. Never were young birds so loath to leave the nursery, and never were little folk so clannish. It looked as if they had resolved to make that homestead on the top branch their headquarters for life, and, above all, never to separate. That night, however, came the first break, and they slept in a droll little row, so close that they looked as if welded into one, and about six feet from home. For some time after they had settled themselves the mother sat by them, as if she intended to stay; but when it had grown quite dark, her mate sailed out over the tree calling; and she,—well, the babies were grown up enough to be out in the world,—she went with her spouse to the poplar-tree.

Progress was somewhat more rapid after this experience, and in a day or two the little kings were flying freely, by short flights, all about the grove, which came quite up to the fence. Now I saw the working of the strange migrating call above mentioned. Whenever the old birds began the cries and the circling flight, the young were thrown into a fever of excitement. One after another flew out, calling and moving in circles as long as he could keep it up. For five minutes the air was full of kingbird cries, both old and young, and then fell a sudden silence. Each young bird dropped to a perch, and the elders betook themselves to their hunting-ground as calmly as if they had not been stirring up a rout in the family. Usually, at the end of the affair, the youngsters found themselves widely apart; for they had not yet learned to fly together, and to be apart was, above all things, repugnant to the three. They began calling; and the sound was potent to reunite them. From this side and that, by easy stages, came a little kingbird, each flight bringing them nearer each other; and before two minutes had passed they were nestled side by side, as close as ever. There they sat an hour or two and uttered their cries, and there they were hunted up and fed by the parents. There, I almost believe, they would have stayed till doomsday, but for the periodical stirring up by the mysterious call. No matter how far they wandered,—and each day it was farther and farther,—seven o'clock always found them moving; and all three came back to the native tree for the night, though never to the nest again.