# UNV501-04 - 2011 United Nations Endangered Species
Endangered Species
In 2011, the United Nations added the 19th set of 12 stamps to its long-running Endangered Species Series. The stamps, issued to raise awareness of the need to protect endangered species around the world, picture 12 different species of birds.
Endangered Species
In 2011, the United Nations added the 19th set of 12 stamps to its long-running Endangered Species Series. The stamps, issued to raise awareness of the need to protect endangered species around the world, picture 12 different species of birds.