Ornithology is the scientific study of birds. It is a branch of zoology that includes the study of their physical characteristics, behavior, and ecology.
Option A is incorrect because mammals are a class of vertebrate animals that have hair or fur and mammary glands that produce milk to feed their young.
Option B is correct because birds are a class of warm-blooded vertebrates that have feathers, wings, and a beak. They lay eggs and are able to fly.
Option C is incorrect because fishes are a class of aquatic vertebrates that have gills, fins, and scales. They
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