Pollnation by birds is

Options

A. Malacophily
B. Ornithophily
C. Chiropterophily
D. Myrmecophily.

Answer

To solve the question "Pollination by birds is", we need to analyze the given options and identify the correct term associated with bird pollination.

### Step-by-Step Solution:

1. **Understanding the Options**:
- We have four options: Malacophyllae, Ornithophyllae, Chiropterophyllae, and Myrmecophyllae.

2. **Analyzing Each Option**:
- **Malacophyllae**: This term refers to pollination by snails. Since the question is about birds, this option can be eliminated.
- **Ornithophyllae**: This term specifically refers to pollination by birds. Birds, such as hummingbirds and sunbirds, have long beaks that allow them to access nectar in flowers, and during this process, pollen grains stick to their bodies, facilitating pollination. This option is likely the correct answer.
- **Chiropterophyllae**: This term refers to pollination by bats. Since we are looking for bird pollination, this option can also be eliminated.
- **Myrmecophyllae**: This term refers to the interaction between ants and certain plants, not birds. Therefore, this option is also incorrect.

3. **Identifying the Correct Answer**:
- Based on the analysis, the only option that correctly describes pollination by birds is **Ornithophyllae**.

### Final Answer:
The correct answer is **Ornithophyllae**.

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