The question of why animals play is by no means new to philosophical inquiry. Herbert Spencer says animals play in their early or youthful stage of life because of their "surplus energy," the same reason that we ascribe to the child, referring more particularly to the strictly muscular plays, in contra-distinction to vocal recreation. An eminent philosopher, however, disagrees with him in this, contending that play in animals is not a mere frolicksome display of surplus energy, but a veritable instinct and a matter of serious moment as well as necessity. However that may be, the fact remains that they do play and, as the writer can aver, in a spirit not at all serious, but with all the happy abandon of a child. Among the wags of the feathered tribe the mockingbird and blue jay deserve special mention, though the raven, crow, catbird, jackdaw, and magpie may, from the point of mischief, be numbered in the list. In looking at the ungainly pelican one would smile to hear him called a "humorist," but as the seal is the buffoon of the aquarium, so the pelican plays the part of the clown in the zoo. His specialty is low comedy and generally the victims of his jokes are the dignified storks and the rather stupid gulls, companions in captivity. The stork's singular habit of standing on one leg affords the pelican a rare chance for a little fun, so he watches until a stork, in a meditative mood, takes up his favorite attitude beside the tank. Then up waddles the pelican and, with a chuckle, jostles against him, and sends him tumbling into the water. It is a question whether the stork enjoys the sport, but the pelican evidently does, for he leaps about evincing the utmost delight, flapping his wings, and squawking, or laughing, in triumph. The gulls he treats in a different fashion. No sooner does he see one seize a piece of bread, or some dainty contributed by a spectator, than up he rushes with a squawk and prodigious flapping of wings, forcing the gull to take refuge in the water, while he with much satisfaction devours the morsel. "Our Animal Friends" tells of a pelican who made friends with a tiny kitten. When in a lively mood the pelican, perhaps recalling how his parents, or himself, in a wild state, were wont to catch fish, would pick up the kitten, toss it in the air, and stand with his huge mouth wide open as if intending to catch it as it came down. Puss seemed to consider it excellent fun, as with a quick motion she turned over in the air, alighting every time uninjured upon her feet; then off she would scamper to the pelican, running about his long legs as though seeking to knock him down. Watching his opportunity he would grasp her again, toss her into the air, and thus the sport would go on till the bird himself tired of it.