They are not always successful, however. I have seen jack rabbits break the circle and escape across the prairie. Two pursuing coyotes quickly gave up the race with an antelope when it turned at a sharp angle and struck off at increased speed. A deer, which several coyotes had frightened into running, suddenly stopped in a little opening surrounded by bushes. Here he put up such an effective and successful fight that two of the attackers received broken ribs and the others drew off. An antelope on the Wyoming plains started several times for water, but, without reaching it, turned and hurried back to the starting place. Going closer I discovered that she had a young kid with her. This was being watched by a near-by coyote. A part of the time he laid near. If the antelope drove him off he at once returned and paced back and forth dangerously near the kid. Some animal had already secured one of her young, and I fear that the coyote wore the mother out and feasted on the other. The gray wolf often kills wantonly--kills for fun, when food is not needed. Rarely, I think, does the coyote do this. In times of plenty he becomes an actor and gives plays and concerts; but if fate provides an excess of food he is likely to cache or store it. A miner lost half a sheep from his pack horse. Half an hour later I went along his trail and discovered a coyote burying a part of this, covering it by means of his nose, like a dog. He had eaten to roundness and had nothing in his outlines to suggest the lean wolf. He eats about everything that has any food value--meat, fruit, grasses, and vegetables in all stages of greenness and ripeness. He has the bad habit of killing young big game; capturing birds and robbing their nests; raiding barnyards for chickens, ducks, and turkeys; and sometimes he feeds on sheep and occasionally kills a calf. Often he catches a fish or frog, eats roots, tender shoots, or has a feast of fruit or melons. The coyote is wise enough to keep near the trail and camp of hunters and trappers. Here he gets many a rich meal of camp scraps and cast-off parts of killed animals. I have known him to travel with a mountain lion and to follow the trail of a bear. In certain localities the chipmunks retire in autumn to their holes, fat and drowsy, and temporarily fall into a heavy sleep. Before the earth is frozen they are energetically dug out by the coyotes. But this is only one of the many bits of natural history known and made use of by the coyote. But the coyote’s food habits are not all bad. At some time in every locality, and in a few localities at all times, he has a high rank in economic biology, and may be said to coöperate silently with the settlers in eradicating damaging pests. He is especially useful in fruit-growing sections. He is at the head of the list of mouse-catching animals. He is a successful ratter, and is the terror of prairie dogs, ground squirrels, and rabbits.