The most important reason of the Red Book organization is the necessity to preserve nature, its biological objects for the further existence.
The International Committee for the wild birds protection, organized in 1902 in Paris, was the first which started to protect the ornithological objects. Later the Red Book IUCN – of International Union for Conservation of Nature and Natural Resources was created. It includes animal, bird, plant species all around the world.
Critically endangered
Endangered species
Vulnerable species