
Bird
A bird is a warm-blooded vertebrate characterized by feathers, wings, and beaks. They belong to the class Aves and are known for their ability to fly, although some species are flightless. Birds typically lay eggs and have efficient respiratory and circulatory systems suited for high activity levels. They occupy diverse habitats worldwide, from forests to oceans. Their feathers serve multiple functions, including flight, insulation, and display. Birds play essential roles in ecosystems as pollinators, seed dispersers, and predators, contributing significantly to environmental balance and biodiversity.