Madagascan pochard Madagascan pochard The Madagascan pochard or Madagascar pochard ("Aythya innotata"; ) is an extremely rare diving duck of the genus "Aythya". Thought to be extinct in the late 1990s, specimens of the species were rediscovered at Lake Matsaborimena in Madagascar in 2006. As of Fall 2017, the population is around 90 individuals. Based on the accounts written by Webb and Delacour's in the 1920s and 1930s it seemed that the bird was still relatively common at Lake Alaotra. The duck probably started to decline dramatically sometime in the late 1940s or early 1950s. The cause of decline was the introduction
Bird-of-paradise lek-type mating system. Others, such as the "Cicinnurus" and "Parotia" species, have highly ritualised mating dances. Males are polygamous in the sexually dimorphic species, but monogamous in at least some of the monomorphic species. Hybridisation is frequent in these birds, suggesting the polygamous species of bird of paradise are very closely related despite being in different genera. Many hybrids have been described as new species, and doubt remains regarding whether some forms, such as Rothschild's lobe-billed bird of paradise, are valid. Birds-of-paradise build their nests from soft materials, such as leaves, ferns, and vine tendrils, typically placed in a tree