Answer:
a peacock
Step-by-step explanation:
The bird peacock is often portrayed as the symbol of vanity.
This comes from the fact that the peacocks spread their feathers to attract the mate or scare the enemy. Their feathers on the tail are colorful and vivid, in very beautiful colors, and very noticeable. Spreading the colorful feathers is the way peacocks are showing off and prancing in front of the other peacock they want to impress.
This is why this bird is a symbol of pride and vanity. Peacocks portray the one that shows off, that brags and boasts a lot, that tries to portray themselves in the most beautiful way possible.