"That's capital," said Harry. "Father was saying he wanted a good specimen or two, for ours were very poor."

The boys were loading again now, and the boat was once more advancing.

"The monkeys did not drive those away," said Phra.

"No; just drove them out right for us. Did as well as dogs, but—Hullo! where are they?"

The boys stared up at the great green wall on their left, but the trees were motionless in the hot sunshine, not a leaf stirring, the only movement visible being in one spot where a gigantic wreath of some flowering creeper hung down from far on high, spreading to the sunshine hundreds of trumpet-shaped white blossoms, and among these somewhere about a score of tiny sun-birds were hovering and darting, the brilliant, metallic, scale-like plumage of head and breast looking as if the diminutive creatures wore helmet and gorget of wonderfully tinted and burnished metals, others approaching in lustre the polish of brilliant gems.

It was a beautiful sight as the little creatures darted about, their rapidly beating wings almost invisible, but giving the birds the appearance of being surrounded by a soft haze. Here one would be apparently motionless beneath a hanging blossom, into which its long thin beak was thrust to probe the nectar like a gigantic bee. There a couple would be engaged in chase and flight, with flash after flash of metallic light reflected from the surface of their plumage as they darted about in full career, turning different portions of their plumage to the sun's rays. Again one would seem to be of the most sober colours, almost dingy, till it moved, and then as it caught the light at some other angle it flashed into a thing of beauty, dazzling in its tints of ruby, sapphire, and purple.

The boys had seen these tiny representatives of the humming birds in the New World scores of times, but always found satisfaction in watching them, and for the time being the monkeys were forgotten.

"What a chance!" said Harry, as the boat was sent in close to the burdened tree without disturbing the sun-birds in the least. "If father wants any more specimens of these, we couldn't come to a better place."

"But next time we come by, that bush will not be in flower, and there will be no sun-birds there."

"But they would be somewhere else," said Harry philosophically. "Look at that one with the red band across his breast. What a beauty! I say, next time we want any I vote that we don't shoot them with sand or water, but try a butterfly net."