Which of the following is not a flightless bird ?

Options

A. Ostrich
B. Emu
C. Passer
D. Rhea

Answer

To determine which of the following birds is not flightless, we will analyze each option provided:

1. **Ostrich**:
- The ostrich is a well-known flightless bird. It is the largest living bird and is native to Africa. Ostriches have adapted to running at high speeds rather than flying.
- Conclusion: Ostrich is a flightless bird.

2. **EMU**:
- The emu is another flightless bird, native to Australia. Like the ostrich, it has lost the ability to fly and is adapted for running.
- Conclusion: EMU is a flightless bird.

3. **Pheasant**:
- Pheasants are a group of birds that are capable of flight. They are often found in various habitats and can fly short distances. They have not lost the ability to fly and are known for their colorful plumage.
- Conclusion: Pheasant is NOT a flightless bird.

4. **Rhea**:
- The rhea is a flightless bird native to South America. It is similar to the ostrich and emu in that it has adapted to a terrestrial lifestyle.
- Conclusion: Rhea is a flightless bird.

After analyzing all the options, we can conclude that the bird that is NOT flightless is the **Pheasant**.

**Final Answer**: Pheasant (Option C)

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