Question

the odd word ("parrot pigeon peacock and lion) ​

Answer 1

Answer:

lion because it's a mammal not a bird

Answer 2

Answer:

Odd one - Lion

Explanation:

$\rightarrow$ The rest options (parrot, pigeon, peacock) are birds and they could fly.

$\rightarrow$ Whereas, 'lion' is an animal here and it couldn't fly.