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

2025年2月24日 · 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 …

2016年2月4日 · Is a bird an animal - are birds animals: yes, they are. On this page we'll explain how birds & other animals are classified, and what makes a bird a bird.

bird, Any of the warm-blooded, beaked vertebrates of the class Aves, including more than 9,600 living species. A covering of feathers distinguishes birds from all other animals. Birds have a …

Birds are warm-blooded vertebrates (vertebrates have backbones) and are the only animals with feathers. Although all birds have wings, a few species can't fly.

Birds are some of the most successful vertebrate animals on Earth. Explore different types of birds, their characteristics, and 40 orders of bird families.

2023年8月14日 · Discover fascinating bird types! From giant ostriches to tiny kiwis, learn about different types of birds, their unique traits, and more!

2022年4月17日 · 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 …

2021年6月9日 · A bird is a vertebrate animal belonging to the class Aves. A bird has feathers, wings and a toothless beak, and most birds can fly. All birds are descended from dinosaurs, …

2025年1月15日 · 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 …