
Bird - Wikipedia
Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. The study of birds is called ornithology.
Bird | Description, Species, Feathers, & Facts | Britannica
Dec 17, 2025 · 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 …
Online bird guide, bird ID help, life history, bird sounds from …
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 Pictures & Facts - National Geographic
The smallest is the two-inch-long bee hummingbird. Everything about the anatomy of a bird reflects its ability to fly. The wings, for example, are shaped to create lift.
Bird Facts - A-Z Animals
Oct 25, 2025 · Although all bird species have wings, some are actually flightless animals that only use their wings for balance and not for flying. Other birds, such as penguins, use their wings …
Avibase - The World Bird Database
Dec 19, 2025 · Avibase is an extensive database information system about all birds of the world, containing over &1 million records about 10,000 species and 22,000 subspecies of birds, …
Bird - Definition, Types, Characteristics, Habitat, Life span, & Picture
May 6, 2025 · With their populations constantly declining, 1,227 bird species were listed as threatened by BirdLife International and the IUCN in 2009. However, conservation efforts are …
eBird - Discover a new world of birding...
3 days ago · eBird transforms your bird sightings into science and conservation. Plan trips, find birds, track your lists, explore range maps and bird migration—all free.
All About Birds - Birds, Cornell Lab of Ornithology
All About Birds is your free online guide to birds and bird watching. Explore in-depth species information, tips from the Lab’s experts, and inspirational v ...
Birds of the World - Cornell Lab of Ornithology
Join us for a virtual presentation with Caribbean guide and conservationist, Ryan Chenery, who will discuss the special challenges faced by single-island endemic bird species.