Which is the champion of all migrating birds?

Options

A. Dove
B. Penguin
C. Himalayan Bearded Vulture
D. Arctic tern

Answer

### Step-by-Step Solution:

1. **Understanding Migration**:
- Migration is a behavioral response of organisms to changes in abiotic factors (like temperature, food availability, etc.). It is a way for organisms to cope with environmental stresses by moving from less hospitable areas to more hospitable ones temporarily.

**Hint**: Think about why animals might need to move from one place to another.

2. **Identifying Migratory Birds**:
- Among the options provided (dove, penguin, Himalayan bearded vulture, and arctic tern), we need to identify which of these birds is known for migration.

**Hint**: Consider which of these birds are commonly known for long-distance travel.

3. **Analyzing the Options**:
- The options include:
- Dove: Generally not known for long migrations.
- Penguin: Primarily resides in the Southern Hemisphere and does not migrate long distances.
- Himalayan Bearded Vulture: Not a migratory bird.
- Arctic Tern: Known for its extensive migration from Arctic breeding grounds to Antarctic feeding grounds.

**Hint**: Look for the bird that has a notable migration pattern.

4. **Understanding the Arctic Tern's Migration**:
- The Arctic Tern is famous for its migration, covering approximately 19,000 kilometers (about 12,000 miles) each year. It travels from its breeding grounds in the Arctic to the Antarctic and back again, allowing it to experience two summers in a single year.

**Hint**: Think about which bird travels the farthest and experiences different seasons.

5. **Conclusion**:
- Based on the analysis, the Arctic Tern is the champion of all migrating birds due to its remarkable long-distance migration and unique ability to see two summers each year.

**Final Answer**: The champion of all migrating birds is the **Arctic Tern** (Option D).