Adults are white with a red crown and a long, dark, pointed bill; juveniles are pale brown; in flight neck is held extended from the body while long legs trail behind and black flight feathers are visible; Ht – 5 feet (1.5 m), wingspan – 7.5 ft (2.3 m), Wt – males 16.5 lbs. (7.5 kg), females 14.3 lbs. (6.5 kg).