Is there a never discorved bird or animal in any country we don't know about?
Actually if you're talking about undiscovered species in the kingdom animalia, there are perhaps millions of undiscovered species. Bird and mammal species are pretty well-known, and there probably not many undiscovered species left. Insect species, however, are largely unknown, especially in the rainforests. Some scientists have found over one thousand new species of insects in one tree in the South American rainforests!