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Bird - Wikipedia
Birds are a group of warm-blooded vertebrate animals constituting the class Aves, 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.
Online bird guide, bird ID help, life history, bird sounds from Cornell ...
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
Bird — Shared Electric Scooters and E-Bikes
Unlock a Bird scooter or e-bike near you and ride through the city. Available in 100+ cities worldwide.
Bird | Description, Species, Feathers, & Facts | Britannica
Bird, any of the approximately 11,200 living species unique in having feathers, the major characteristic that distinguishes them from other animals. They are warm-blooded vertebrates more related to reptiles than mammals.
Guide to North American Birds | Audubon
Explore more than 800 North American bird species, learn about their lives and habitats, and how climate change is impacting their ability to survive.
Cornell Lab of Ornithology—Home
Join us and help create a future where birds, nature, and people can thrive. We believe that people make the difference in every conservation challenge. Through participatory science projects, practical conservation actions, and broad partnerships, we offer limitless ways for you to deepen your interests and passions. What’s that bird?
eBird - Discover a new world of birding...
eBird transforms your bird sightings into science and conservation. Plan trips, find birds, track your lists, explore range maps and bird migration—all free.
Bird - Definition, Types, Characteristics, Habitat, Life span, & Picture
Birds are warm-blooded vertebrates characterized by feathers on their bodies, toothless beaked jaws, hard-shelled calcareous eggs, and a four-chambered heart with a high rate of metabolism.
Birds: Different Types, Definition, Photos, and More - A-Z Animals
Birds, members of the class Aves, include more than 10,400 living bird species – more than half being passerine, or “perching” birds. Their feathers distinguish them from all other classes of animal; no other animals on earth have them.
40 Types of Birds | Common Groups & Scientific Orders (2026)
Discover the main types of birds, from common groupings like birds of prey and water birds to the 40 scientific bird orders. Explore examples, classification, and bird diversity worldwide.
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