On another pool farther up the track reappeared, and was rubbed out here and there by the same heavy dragging in the snow, like a chain with a long solid bar at regular distances in place of links. At one point the otter had gone ashore and scratched a little upon the ground. He had gone from pool to pool, taking the open rapids wherever they appeared.
The otter is a large mink or weasel, three feet or more long and very savage. It feeds upon fish, which it seems to capture with ease. It is said that it will track them through the water as a hound tracks a fox on land. It will travel a long distance under the ice, on a single breath of air. Every now and then it will exhale this air, which will form a large bubble next the ice, where in a few moments it becomes purified and ready to be taken into the creature's lungs again. If by any accident the bubble were to be broken up and scattered, the otter might drown before he could collect it together again. A man who lived near the creek said the presence of the otter accounted for the scarcity of the fish there.
V
The other day one of my farmer neighbors asked me if I had seen the new bird that was about. This man was an old hunter, and had a sharp eye for all kinds of game, but he had never before seen the bird, which was nearly as large as a robin, of a dull blue or slate color marked with white.
Another neighbor, who was standing by, said the bird had appeared at his house the day before. A cage with two canaries was hanging against the window, when suddenly a large bird swooped down as if to dash himself against it; but arresting himself when near the glass, he hovered a moment, eying the birds, and then flew to a near tree.
The poor canaries were so frightened that they fell from their perches and lay panting upon the floor of their cage.
No one had ever seen the bird before; what was it? It was the shrike, who thought he was sure of a dinner when he saw those canaries.
If you see, in late autumn or winter, a slim, ashen-gray bird, in size a little less than the robin, having white markings, flying heavily from point to point, and always alighting on the topmost branch of a tree, you may know it is the shrike.
He is very nearly the size and color of the mockingbird, but with flight and manners entirely different. There is some music in his soul, though his murderous beak nearly spoils it in giving it forth.
One winter morning, just at sunrise, as I was walking along the streets of a city, I heard the shrike's harsh warble. Looking about me, I soon saw the bird perched upon the topmost twig of a near tree, saluting the sunrise. It was what the robin might have done, but the strain had none of the robin's melody.