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Birds are a group of warm-blooded vertebrates constituting the class Aves ( / ˈeɪviːz / ), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
All News. All Webinars. Birds of the World is a powerful resource that brings deep, scholarly content from four celebrated works of ornithology into a single platform where biologists and birders can find comprehensive life history information on birds. Every bird has a story.
eBird is a global platform for birders to share their sightings, explore birds and hotspots, and contribute to conservation. Learn how to get started, join the community, and access resources and features on eBird.
Hace 4 días · Learn about birds, the only living animals with feathers, from Britannica. Explore their evolution, diversity, behavior, ecology, and cultural significance with articles, images, and videos.
Explore the diversity and adaptability of birds with stunning photos, videos, and stories. Learn about their anatomy, evolution, behavior, and conservation.
traducir BIRD: ave, pájaro, chica, volante, pájaro [masculine]. Más información en el diccionario inglés-español.
Learn about the incredible diversity and importance of birds, and how they are declining at a shocking rate. Explore popular and endangered species, data, stories and ways to help protect them.
