Crest (feathers) Crest (feathers) The crest is a prominent feature exhibited by several bird and other dinosaur species on their heads. The crest is made up of semiplume feathers: a long rachis with barbs on either side. These are plumulaceous feathers, meaning that they are soft and bendable. In birds, these semiplumes are common along the head, neck, and upper back, and may be used for buoyancy and sensing vibrations. Crests on birds are generally used for display purposes. Cockatoos and their smaller cousins, cockatiels, are part of the parrot family Cacatuidae found in Australia, the Bismarck Archipelago and the Philippines, and
The Bird in a Cage The Bird in a Cage The Bird in a Cage, or The Beauties is a Caroline era comedy written by James Shirley, first published in 1633. The play is notable, even among Shirley's plays, for its lushness — what one critic has called "gay romanticism run mad." The play was licensed for performance, under the title "The Beauties," by Sir Henry Herbert, the Master of the Revels, on 21 January 1633. It was published in quarto in the same year, printed by B. Alsop and T. Fawcet for the bookseller William Cooke. The title page of the 1633 quarto states