The Bug:

Invulnerable parrots receive the poison effect when fed cookies while in survival or adventure mode.

Steps to Reproduce:

1. Summon an invulnerable parrot by using the command provided below.

   /summon minecraft:parrot ~ ~ ~ {Invulnerable:1b}

2. Obtain a cookie and enter either survival or adventure mode.
3. Feed the parrot the cookie and watch closely.

Observed Behavior:

Invulnerable parrots receive the poison effect despite being invulnerable.

Expected Behavior:

Invulnerable parrots would not receive the poison effect.