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
USS Calamus (AOG-25) USS Calamus (AOG-25) USS "Calamus" (AOG-25) was a "Mettawee"-class gasoline tanker acquired by the U.S. Navy for the dangerous task of transporting gasoline to warships in the fleet, and to remote Navy stations. "Calamus" was launched 4 May 1944 by East Coast Shipyard, Inc., Bayonne, New Jersey, under a Maritime Commission contract; sponsored by Mrs. A. H. Moore; transferred to the Navy 7 July 1944; and commissioned the same day, Lieutenant W. Hord, USCGR, in command. "Calamus" sailed from Norfolk, Virginia, 13 September 1944, bound for Pearl Harbor and Ulithi, where she arrived in mid-December and began her work as