Aves (Birds)

Aves, commonly known as birds, are warm-blooded vertebrates characterized by feathers, beaks, and the ability to fly (though some are flightless). They have a lightweight skeletal structure, high metabolic rates, and are covered with feathers that aid in insulation, display, and flight. Birds lay eggs with hard shells and have a highly developed respiratory system for efficient oxygen exchange. Their diverse species range from tiny hummingbirds to large ostriches. Adapted to various habitats worldwide, birds play vital roles in ecosystems, such as pollination, seed dispersal, and pest control.