Explanation:

- Ornithology refers to the study of birds. It involves observing and understanding bird behavior, physiology, and ecology.

- Entomology is the study of insects, focusing on their behavior, ecology, and classification.

- Herpetology deals with the study of reptiles and amphibians, exploring their life processes and biodiversity.

- Mammalogy is the study of mammals, examining their anatomy, genetics, and evolution.

Correct Answer: Option 2 - The Study of birds.

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