Answer:

The correct answer is option 'A', Tailor bird.

Explanation:

The tailor bird uses its sharp beak to stitch together two leaves on a bush. This behavior is unique to tailor birds and helps them build their nests.

1. Tailor Bird:
- The tailor bird is a small bird found in Asia, particularly in the Indian subcontinent.
- It is known for its nest-building skills, where it sews leaves together using its sharp beak.
- The bird selects two leaves that are close to each other and then pierces them with its beak.
- It then pulls a long fiber or thread-like material, such as spider silk or plant fibers, through the holes to bind the leaves together.
- The tailor bird repeats this process multiple times, creating a sturdy and secure nest.

2. Nest Building:
- The tailor bird's nest is typically shaped like a pouch or a cup.
- It provides a safe and cozy space for the bird to lay its eggs and raise its young.
- The stitched leaves serve as the structure of the nest, providing support and protection.
- The bird further reinforces the nest by weaving other materials like grass, feathers, and twigs into the leaves.

3. Advantages of Stitching Leaves:
- Stitching leaves together has several advantages for the tailor bird:
- It creates a strong and stable nest that can withstand wind and rain.
- The stitched leaves provide camouflage, helping the nest blend in with the surrounding foliage.
- The nest is well-insulated, providing a comfortable environment for the eggs and chicks.
- By using leaves, the tailor bird also avoids the need to gather other building materials.

Conclusion:
In conclusion, the tailor bird uses its sharp beak to stitch together two leaves on a bush. This unique behavior allows it to build a secure and comfortable nest for its young.

A)