Birds
class Aves
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Birds, belonging to the class Aves, are a distinctive and diverse group of warm-blooded vertebrates within the animal kingdom. Their most defining feature is the covering of feathers, a trait unique to them. All birds possess a beak and lay hard-shelled eggs. While most species are capable of flight, powered by modified forelimbs forming wings, some, like the familiar pheasant, are primarily terrestrial. For identification, focus on key characteristics: size and shape, plumage colour and patterns, beak form, leg length, and flight style. Song and call are also crucial, often revealing a hidden bird before it is seen.
