How Many Kinds of Birds Are There and Why Does It Matter? Using a sample of 200 species taken from a list of 9159 biological species determined primarily by morphological criteria, we applied a diagnostic, evolutionary species concept to a morphological and distributional data set that resulted in an estimate of 18,043 species of birds worldwide, with a 95% confidence interval of 15,845 to 20,470
Pictures of Eagles from Around the World | National Geographic Move over, bald eagle—there are 60 species of these birds of prey worldwide 1 of 19 The black hawk-eagle or tyrant hawk-eagle, Spizaetus tyrannus, shows off its impressive plummage at Parque
Bowerbird - Wikipedia There are two main types of bowers Prionodura, Amblyornis, Scenopoeetes and Archiboldia bowerbirds build so-called maypole bowers, which are constructed by placing sticks around a sapling; in the former two species these bowers have a hut-like roof [13]
Bird flu existential threat to the world’s biodiversity The bird flu that has been growing more pervasive during the past few years has infected more than 500 species, including 485 avian and at least 70 mammalian The outbreak is being described as the fastest spreading and largest ever, posing a significant threat to biodiversity worldwide
Hummingbird - Wikipedia Although most hummingbird species live in remote habitats where their population numbers are difficult to assess, population studies in the United States and Canada indicate that the ruby-throated hummingbird numbers are around 34 million, rufous hummingbirds are around 19 million, black-chinned, Anna's, and broad-tailed hummingbirds are about
Pelican - Wikipedia All species breed readily in zoos, which is potentially useful for conservation management [84] Pelecanus occidentalis, Tortuga Bay, Island of Santa Cruz, Galápagos The combined population of brown and Peruvian pelicans is estimated at 650,000 birds, with around 250,000 in the United States and Caribbean, and 400,000 in Peru