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Learn about the characteristics, diversity, and cultural significance of birds, the only living animals with feathers. Explore the anatomy, evolution, behavior, and ecology of more than 10,400 species of birds.
Learn about the characteristics, classification, and diversity of birds, the only living dinosaurs with feathers and beaks. Find out how birds evolved, adapted, and interacted with humans and other species.
Learn about the key features of birds, such as feathers, beaks, wings, and eggs, and how they differ from other vertebrates. Explore the classification system and taxonomy of birds, from orders to species, and see examples of bird and non-bird animals.
Learn about birds, the vertebrate animals adapted for flight, from the largest ostrich to the smallest hummingbird. Explore photos, videos, stories, and facts about different bird species and...
Learn what makes a bird a bird, how birds evolved from reptiles and dinosaurs, and what characteristics birds share with other animals. Explore the diversity, intelligence, vision and adaptations of different bird species with facts, pictures and videos.
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.
Learn about the class aves, the only animal group with feathers, beaked jaws, and lightweight skeletons. Discover the diversity, adaptations, and interesting facts of birds, from their reproduction to their communication.
Learn about the features, evolution, and classification of birds, the warm-blooded vertebrates with feathers and beaks. Explore the different orders and families of birds, from songbirds to parrots, and their adaptations and uses.
Explore the diverse world of birds with our comprehensive guide featuring names, characteristics, and examples of various avian species. Learn about the unique traits and behaviors.
Learn about the diversity and characteristics of over 10,000 bird species, from terrestrial to aquatic habitats. Explore the taxonomic structure and see photos of 25 common types of birds, such as ducks, swans, chickens, crows, and more.