Black wildebeest
Where it lives alongside the blue wildebeest, the two species can hybridise, and this is regarded as a potential threat to the maintenance of the species. The black wildebeest was once very numerous and was present in Southern Africa in vast herds, but by the end of the 19th century, it had nearly been hunted to extinction and fewer than 600 animals remained. A small number of individuals was still present in game reserves and at zoos, and from these, the population was rescued.
Black magpie
It is found in Brunei, Indonesia, Malaysia, Myanmar, Singapore, and Thailand. The subspecies "P. l. atterimus" is endemic to the island of Borneo; it is sometimes considered a full species known as the Bornean black magpie. The natural habitats of the black magpie are subtropical or tropical moist lowland forest and subtropical or tropical mangrove forest. It is threatened by habitat loss.