Three of the following four are alike in a certain way and so form a group. Which is the one that does not belong to that group ?

Options

A. Parrot
B. Koel
C. Vulture
D. Swan

Answer

To solve the problem of identifying which one of the four options does not belong to the group, we can follow these steps:

### Step 1: Identify the Options
The options given are:
1. Parrot
2. Koel
3. Vulture
4. Swan

### Step 2: Analyze Each Option
We need to determine the characteristics of each bird:
- **Parrot**: Typically found in trees, does not live in water.
- **Koel**: Also a tree-dwelling bird, does not live in water.
- **Vulture**: Generally found in open areas and does not live in water.
- **Swan**: A water bird that lives in and around water bodies.

### Step 3: Group the Similarities
Now, we can group the birds based on their habitat:
- **Non-water birds**: Parrot, Koel, Vulture
- **Water bird**: Swan

### Step 4: Identify the Odd One Out
From the analysis, we see that:
- The first three options (Parrot, Koel, Vulture) are all birds that do not live in water.
- The Swan is the only bird that is a water bird.

### Conclusion
Thus, the one that does not belong to the group is **Option 4: Swan**.