THE SUMMER YELLOW BIRD. 73 bler sometimes mounts a twig, and with a loud, shrill, and almost piercing voice, it utters, at short intervals, “tsh, tsh, tsh, tsh, tshaia.” The female sometimes sings nearly as well as the male. The Summer Yellow Bird, to attract attention from its nest, when sitting, or when the nest con- tains young, will often feign lameness, hang its head and flutter feebly along. Towards the latter end of summer, the young and old feed much on juicy fruits, as mulberries, correlberries, and other kinds.