Eremopezus more than a large emu—and more than 10 kg—slightly more than the largest living storks (which reach over 150 cm in height) and the shoebill. The general limit for weight in flying birds is at about 25 kg, the exceptional "Argentavis magnificens" with its size and weight of a good-sized adult human notwithstanding as it evolved under unusual ecological conditions. Large males of the kori bustard ("Ardeotis kori") and great bustard ("Otis tarda") are perfectly capable of flight, while weighing in excess of 20 kg. A wing loading of c. 25 kg/m is the known limit for bird flight under
Otis Spofford Otis Spofford Otis Spofford is a 1953 children's novel by Beverly Cleary. The story revolves around the antics of the title character, a precocious fourth-grader with a knack for getting into trouble. Otis lives with his mother, who is often absent from the household due to teaching classes at her dance school, and therefore Otis is required to entertain himself, by "stirring up a little excitement". His trademarks are his glow-in-the-dark shoelaces (one pink, one green), the rabbit's foot he keeps attached to his jacket zipper, and his particular fondness for irritating his classmate Ellen Tebbits although he never understands