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The Weasel
by
Let me conclude this chapter with two or three more notes about this alert enemy of the birds and lesser animals, the weasel.
A farmer one day heard a queer growling sound in the grass: on approaching the spot he saw two weasels contending over a mouse; both held the mouse, pulling in opposite directions, and they were so absorbed in the struggle that the farmer cautiously put his hands down and grabbed them both by the back of the neck. He put them in a cage, and offered them bread and other food. This they refused to eat, but in a few days one of them had eaten the other up, picking his bones clean, and leaving nothing but the skeleton.
The same farmer was one day in his cellar when two rats came out of a hole near him in great haste, and ran up the cellar wall and along its top till they came to a floor timber that stopped their progress, when they turned at bay, and looked excitedly back along the course they had come. In a moment a weasel, evidently in hot pursuit of them, came out of the hole, but, seeing the farmer, checked his course and darted back. The rats had doubtless turned to give him fight, and would probably have been a match for him.
The weasel seems to track its game by scent. A hunter of my acquaintance was one day sitting in the woods, when he saw a red squirrel run with great speed up a tree near him, and out upon a long branch, from which he leaped to some rocks, disappearing beneath them. In a moment a weasel came in full course upon his trail, ran up the tree, then out along the branch, leaping from there to the rocks just as the squirrel had done and pursuing him into their recesses.
Doubtless the squirrel fell a prey to him. The squirrel’s best game would have been to keep to the higher treetops, where he could easily have distanced the weasel. But beneath the rocks he stood a very poor chance. I have often wondered what keeps such an animal as the weasel in check, for they are quite rare. They never need go hungry, for rats and squirrels and mice and birds are everywhere. They probably do not fall a prey to any other animal, and they are very rarely captured or killed by man. But the circumstances or agencies that check the increase of any species of animal are, as Darwin says, very obscure and but little known.