The Pava Aliblanca, a miraculous return from extinction

The Pava Aliblanca is a slender black bird with distinctive white flight feathers. Initially discovered in 1877, it was thought to be extinct after numerous failed expeditions. However, in 1977, the species was rediscovered in Peru with fewer than 250 specimens, classifying it as critically endangered.

When was the Pava Aliblanca rediscovered and where?

What is the conservation status of the Pava Aliblanca?