The stranger wandering through the forest is surprised to hear a peculiar sound, very similar to that produced by striking two full-blown ox-bladders together, but much louder. It is caused by the ruffed grouse, who, amusing himself by drumming, is little aware that it will bring the cruel sportsman towards him. The bird produces it when standing on an old prostrate log. He lowers his wings, erects his expanded tail, and inflates his whole body something in the manner of the turkey-cock, strutting and wheeling about with great stateliness. After a few manoeuvres of this kind he begins to strike with his stiffened wings, in short and quick strokes, which become more and more rapid, till they run into each other. The sound then resembles the rumbling of distant thunder, dying away gradually on the ear. The hen is an affectionate mother, and takes every means, when a stranger approaches her nest, to lead him away from the spot. Wilson describes observing a hen-pheasant depart from this usual custom. He came suddenly upon one with a young bird in her company. The mother fluttered before him for a short time, when suddenly darting towards the young one, she seized it in her bill, and flew off along the surface of the ground through the woods, with great steadiness and rapidity, till she was beyond his sight, leaving him in much surprise at the incident. He searched round, but could find no other birds. Here was a striking instance of something more than "blind instinct"--by the adoption of the most simple and effectual means for the preservation of her solitary young one--in this remarkable deviation from the usual manoeuvres of the bird when she has a numerous brood. The ruffed grouse is of a rich chestnut-brown, mottled with brown and grey; while on each shoulder are the curious ruffs, or tufts, from which he obtains his name, of a rich velvety black, glossed with green. The skin beneath them is bare; the tail is grey, barred with blackish-brown. Another species of grouse, smaller than the two former, inhabits Canada. PASSENGER-PIGEONS. Flights of locusts are often seen passing through the air, like vast clouds, obscuring the sky. The passenger-pigeon of America appears in almost equal numbers. The accounts of their vast nights would be incredible, were they not thoroughly well authenticated.