Bharatpur Bird Sanctuary has - species of birds.
(274,374, 474,574)

Explanation

To solve the question regarding the number of species of birds in Bharatpur Bird Sanctuary, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the number of bird species present in Bharatpur Bird Sanctuary. We have four options: 274, 374, 474, and 574.

2. **Recall Information**: From the video transcript, it is mentioned that Bharatpur Bird Sanctuary is known for its diverse bird species and is located in Rajasthan.

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