Birds are a group of warm-blooded vertebrates constituting the class Aves, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four …

Detailed information for more than 600 North American bird species, including ID help, browse by shape and taxonomy, and deeper articles.

Jun 25, 2025 · Bird, any of the more than 10,400 living species unique in having feathers, the major characteristic that distinguishes them from other animals. They are warm-blooded …

Bird electric bikes and scooters are providing eco-friendly transportation for riders in hundreds of cities around the world. NYSE: BRDS.

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 ...

21 Blue Colored Birds In North America (And Why They Are NOT Actually Blue!) Shorebirds are found wandering along our lake shores, beaches, marshes, and wet areas and there are so …

Aug 14, 2023 · Discover fascinating bird types! From giant ostriches to tiny kiwis, learn about different types of birds, their unique traits, and more!

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 …

Mar 26, 2024 · Birds are a class of warm-blooded vertebrates with distinguishing features including feathers, wings, and beaks. They are renowned for their remarkable diversity, …

House sparrow, Passer domesticus The following outline is provided as an overview of and topical guide to birds: Birds (class Aves) – winged, bipedal, endothermic (warm-blooded), egg-laying, …