In this sweet, still hour, just at the dewfall, the rush of whirring wings may be heard from the islands, or in the forest, bordering on the water's edge; and out of hollow logs and hoary trunks of trees come forth the speckled night-hawks, cutting the air with their thin, sharp, wide wings and open beak, ready to intrap the unwary moth or musquito that float so joyously upon the evening air. One after another, sweeping in wider circles, come forth these birds of prey, till the whole air seems alive with them; darting hither and thither, and uttering wild, shrill screams, as they rise higher and higher in the upper air, till some are almost lost to sight. Sometimes one of them will descend with a sudden swoop to the lower regions of the air, just above the highest treetops, with a hollow, booming sound, as if some one were blowing in an empty vessel.
At this hour, too, the bats would quit their homes in hollow trees and old rocky banks, and flit noiselessly abroad over the surface of the quiet, star-lit lake: and now also would begin the shrill, trilling note of the green-frog, and the deep, hoarse bass of the bull-frog, which ceases only at intervals, through the long, warm summer night. You might fancy a droll sort of dialogue was being carried on among them. At first a great fellow, the patriarch of the swamp, will put up his head, which looks very much like a small pair of bellows, with yellow leather sides, and say, in a harsh, guttural tone, "Go to bed, go to bed, go to bed." After a moment's pause, two or three will rise and reply, "No, I won't; no, I won't; no, I won't." Then the old fellow, with a growl, replies, "Get out, get out, get out." And forthwith, with a rush, and a splash, and a dash, they raise a chorus of whirring, grating, growling, grunting, whistling sounds, which make you stop up your ears. When all this hubbub has lasted some minutes, there is a pop and a splash, and down go all the heads under the weeds and mud; and after another pause, up comes the aged father of the frogs, and begins again with the old story, "Go to bed, go to bed, go to bed," and so on. During the heat of the day the bull-frogs are silent; but as the day declines and the air becomes cooler, they recommence their noisy chorus.
I suppose these sounds, though not very pleasant to the ears of men, may not be so disagreeable to those of wild animals. I daresay neither Nimble nor Silvy were in the least annoyed by the hoarse note of the bull-frog, but gambolled as merrily among the boughs and fresh dewy leaves as if they were listening to sweet music or the songs of the birds.
The summer passed away very happily; but towards the close of the warm season the squirrels, Nimble and Silvy, resolved to make a journey to the rocky island on Stony Lake, to see the old squirrels, their father and mother. So they started at sunrise one fine pleasant day, and travelled along; till one cool evening, just as the moon was beginning to rise above the pine-trees, they arrived at the little rocky islet where they first saw the light. But when they eagerly ran up the trunk of the old oak tree, expecting to have seen their old father and mother, they were surprised and terrified by seeing a wood-owl in the nest.
As soon as she espied our little squirrels she shook her feathers and set up her ears—for she was a long-eared owl—and said,—
"What do you want here?—ho, ho, ho, ho!"
"Indeed, Mrs. Owl," said Nimble, "we come hither to see our parents, whom we left here a year ago. Can you tell us where we shall find them?"
The owl peered out of her ruff of silken feathers, and, after wiping her sharp bill on her breast, said,—
"Your cousin, the black squirrel, beat your father and mother out of their nest a long time ago, and took possession of the tree and all that was in it; and they brought up a large family of little ones, all of which I pounced upon one after another, and ate. Indeed, the oaks here belong to my family; so, finding these impudent intruders would not quit the premises, I made short work of the matter, and took the law into my own hands."
"Did you kill them?" asked Silvy, in a trembling voice.