In this article Scientist report on the genomes of 363 species of birds which includes 267 that have been sequenced for the first time. The study have was done in this article represent more than 92 percent of the world's avian family. Avian family is a bird family that have warm blooded egg-lying vertebrates characterized by feather and forelimbs modified as wings. Since the first bird evolved more than 150 million years ago , its decedent have adapted to vast range of ecological niches. On November 11 scientist from the Smithsonian institution, the university of Copenhagen, BGI- Shenzhen, the university California Santa Cruz and about 100 other institute reported on the genomes of 363 species of birds, including 267 that have been sequenced for the first time. About 40 % of the genomes were obtained from the tissue samples preserved in the National Museum of Natural History's avian genetic resources collection.