The evolution of birds began in the jurassic period with the earliest birds derived from a clade of theropoda dinosaurs named paraves birds are categorized as a biological class avesfor more than a century the small theropod dinosaur archaeopteryx lithographica from the late jurassic period was considered to have been the earliest bird modern phylogenies place birds in the dinosaur clade . A history of british birds is a natural history book by thomas bewick published in two volumesvolume 1 land birds appeared in 1797 volume 2 water birds appeared in 1804 a supplement was published in 1821. Buy the bird a natural history of who birds are where they came from and how they live on amazoncom free shipping on qualified orders. The discovery that birds evolved from small carnivorous dinosaurs of the late jurassic was made possible by recently discovered fossils from china south america and other countries as well as by looking at old museum specimens from new perspectives and with new methods the hunt for the ancestors of living birds began with a specimen. In 1893 the private collection of 19000 specimens of charles b cory established the ornithological research collections and cory was named curator of ornithology for life without residence obligations initially this association was a very casual one for cory he augmented his collection and
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