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 netting of a barrier to their diving into the ponds. Bird netting is one of the most effective and long lasting ways of bird proofing buildings and other structures against all urban bird species. It provides a discreet and impenetrable barrier that protects premises without harming the birds. Bird netting can be particularly effective for large open areas such as roofs and loading bays. Design considerations include the type and material of the fixings utilized and the bird species requiring exclusion. Miners will use chemical agents to extract minerals or metals from crushed rocks. These harmful chemical agents must be confined