Largest organisms is frequently poorly documented and many are subject to conjecture and estimation. The largest living bird, a member of the Struthioniformes, is the common ostrich ("Struthio camelus"), from the plains of Africa and Arabia. A large male ostrich can reach a height of and weigh over . A mass of has been cited for the common ostrich but no wild ostriches of this weight have been verified. Eggs laid by the ostrich can weigh and are the largest eggs in the world today. The largest bird in the fossil record may be the extinct elephant birds ("Aepyornis") of Madagascar, which
François Lays at the École royale de Musique et de Déclamation, which had replaced the Conservatoire. The salary was indispensable to Lays because his gout meant he was no longer able to appear at the Opéra as regularly as he had done, leading to a drastic reduction in extra income. In 1816, Lays had the satisfaction of enjoying one final triumph in the comic opera "Le rossignol" by Louis-Sébastien Lebrun (1764–1829), set in the foothills of his native Pyrenees. Lays took one of his favourite stock parts, "a bailiff in his fifties, a lover of good food and beautiful young women, naive