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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.
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. Discover them all with Birds of the World. About Birds of the World; Team; Subscribe
19 de may. de 2024 · Learn about birds, the feathered animals with more than 10,400 living species and a rich cultural and symbolic history. Explore their evolution, anatomy, behavior, ecology, and diversity with Britannica.
Explore the diversity and adaptability of birds with stunning photos, videos, and stories. Learn about their anatomy, evolution, behavior, and conservation.
eBird is a global platform for birders to share their sightings, explore birds and hotspots, and contribute to conservation. Learn how to join, use eBird Mobile, and access resources and news.
Guía de Aves. Explore más de 800 especies de aves de América del Norte, aprenda sobre sus vidas y hábitats, y cómo el cambio climático está afectando su capacidad para sobrevivir. Nombre de ave. Familia. Región. ¡Nuevo! Pruebe los filtro avanzado. 804 birds.
birding, and opportunities to help bird conservation. Use our Bird Guide to identify birds, learn about the life history, listen to the sounds, and watch bird behavior on video--the most comprehensive guide to Nort.
