A wingless bird is

Options

A. Ostrich
B. Penguin
C. Hoopoe
D. Gallus

Answer

To solve the question "A wingless bird is," we will analyze the options provided: ostrich, penguin, hoopoe, and gallus. Here’s a step-by-step breakdown:

### Step 1: Analyze the Options
- **Ostrich**: Known as the largest living flightless bird. It is native to Africa and lacks the ability to fly due to its flat breastbone, which does not have the keel necessary for flight. Importantly, it is considered a wingless bird.

- **Penguin**: While penguins are also flightless birds, they do possess wings. However, these wings are modified into flippers for swimming rather than flying. Thus, they do have wings, making them an incorrect option for this question.

- **Hoopoe**: This bird is colorful and is known for its distinctive crown. It has wings and is capable of flight, so it is also an incorrect option.

- **Gallus**: This refers to the domestic chicken, which is native to regions like India and Sri Lanka. Chickens also have wings, so this option is incorrect as well.

### Step 2: Conclusion
After analyzing all the options, the only bird that is both flightless and wingless is the **ostrich**. Therefore, the correct answer to the question is:

**Answer: Ostrich**