There are currently only approximately 400 takahe, but their numbers are rising year after year, which is fantastic given that the bird was once supposed to be extinct. Today, there are more than 500 birds. The takahe is one of the rarest birds on Earth. Only in New Zealand can you find them alive today. In 2003, there were only about 40 birds left. Now, there are more than 500 takahe again. This shows that if you protect the environment, then nature will take care of itself and give the species a chance to recover. No human intervention is needed to bring back the takahe; just well-known natural processes have done it before. However, since its original protection in 1995, none of the takahe have been allowed to breed beyond the first generation. In conclusion, not much needs to happen for species to recover. All that's required is that they be protected so that they can reproduce without interference from humans.