The bug

When a player is "crawling" (swimming animation caused by not enough space for the player to sneak or stand up), any parrots on their shoulder(s) will not fly away and stick to the player model.

To reproduce

1. Dig a tunnel that is one block tall
2. Put a trap door in front of it
3. Spawn a parrot and tame it
4. Switch into survival mode
5. Walk to the parrot so that it flies on top of your shoulder
6. Walk into the trapdoor and close it in order to enter crawling mode
   → The parrot stays on the shoulder

Original description

When a player is at a height of one unit, with a parrot on his shoulder, parrot remains, and lies with him, it looks weird, maybe he just likes the dirt <3