The red bat rarely or never seeks shelter in gloomy caves and crevices, but hangs to the small twigs or leaf stems on trees and bushes in the full light of the sun. One observer in Texas on July 4 found four of them hanging in a cluster from a twig on a peach tree, with the sun shining full on them, although the temperature in the shade was 82 degrees Fahrenheit. I have found them in northern Illinois in the glaring sunlight of May, hanging from leaves in the tops of oak trees. This unusual tolerance of light in a member of the bat tribe is further shown by its habit of beginning to hunt through the air for insects earlier in the afternoon than other species in its range. [Illustration: BIG DOG TROTTING This track of a big dog trotting in about two and a half inches of snow is singular in the perfect register it shows. The hind foot drops each time into the track of the front foot. This correct style is more usual with wild than with tame animals. Compare with track of dog galloping, page 596.] [Illustration: A COMMON DOG The hind feet are, as usual, narrower, though nearly as long as the front. The dog is a loose walker. Sometimes the hind foot is on the track of the front, sometimes ahead, and often behind. The claws show. The dragging of the front feet is another slovenly habit, an evidence of overdomestication.] Long, narrow wings and swift, powerful flight characterize the red bats in the air. They have marvelous control in darting and turning here and there, and no birds, except possibly the chimney swifts, can equal them in their extraordinary gyrations. Red bats are known to migrate from the northern part of their range in September or October and to return in May. They have been seen going south at Cape Cod the last of August and in September; and late in October Dr. E. A. Mearns has recorded great flights of them down the Hudson Valley, lasting throughout the day. That they share the vicissitudes of migrating birds is indicated by observation on the New Jersey coast of stray individuals coming in from the sea exhausted early on September mornings. They are among the most solitary of their kind, usually being found hanging singly on a tree or bush, sometimes within a few feet of the ground. On occasion they gather in clusters as mentioned above, and in one instance in Maryland more than a dozen were hanging in a compact ball, which suddenly exploded into its winged parts when disturbed.