“When alarmed he bounds away gracefully as if there were great springs in his legs, and his great curled horns are carried as easily as if they were nothing at all. Down rock slopes, so steep that a single misstep would mean a fall hundreds of feet, he bounds as swiftly and easily as Lightfoot the Deer bounds through the woods, leaping from one little jutting point of rock to another and landing securely as if he were on level ground. He climbs with equal ease where man would have to crawl and cling with fingers and toes, or give up altogether. “Mrs. Bighorn does not have the great curling horns. Instead she is armed with short, sharp-pointed horns, like spikes. Her young are born in the highest, most inaccessible place she can find, and there they have little to fear save one enemy, King Eagle. Only such an enemy, one with wings, can reach them there. Bighorn and Mrs. Bighorn, because of their size, nothing to dread from these great birds, but helpless little lambs are continually in danger of furnishing King Eagle with the dinner he prizes. “Only when driven to the lower slopes and hills by storms and snow does Bighorn have cause to fear four-footed enemies. Then Puma the Panther must be watched for, and lower down Howler the Wolf. But Bighorn's greatest enemy, and one he fears most, is the same one so many others have sad cause to fear--the hunter with his terrible gun. The terrible gun can kill where man himself cannot climb, and Bighorn has been persistently hunted for his head and wonderful horns. “Some people believe that Bighorn leaps from cliffs and alights on those great horns, but this not true. Whenever he leaps he alights on those sure feet of his, not on his head. “Way up in the extreme northwest corner of this country, in a place called Alaska, is a close cousin whose coat is all white and whose horns are yellow and more slender and wider spreading. He called the Dall Mountain Sheep. Farther south, but not as far south as the home of Bighorn, is another cousin whose coat is so dark that he is sometimes called the Black Mountain Sheep. His proper name is Stone's Mountain Sheep. In the mountains between these two is another cousin with a white head and dark body called Fannin's sheep. All these cousins are closely related and in their habits are much alike. Of them all, Bighorn the Rocky Mountain Sheep is the best known.” “I should think,” said Peter Rabbit, “that way up there on those high mountains Bighorn would be very lonesome.” Old Mother Nature laughed. “Bighorn doesn't care for neighbors as you do, Peter,” said she. “But even up in those high rocky retreats among the clouds he has a neighbor as sure-footed as himself, one who stays winter as well as summer on the mountain tops. It is Billy the Rocky Mountain Goat.