Obviously birds are the beauty of our world. There are around 10,000 living species, making them the most numerous tetra-pod vertebrates. Some birds, particularly songbirds, peacocks and parrots are popular as pets. About 120–130 species have become extinct as a result of human activity since the 17th century, and hundreds more before then. Currently about 1,200 species of birds are threatened with extinction by human activities, though efforts are underway to protect them. Lets take a look at top 20 most colorful birds of the world.
