system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If parrots are so smart, why can't they be potty trained?
gpt
Some animals have a natural instinct to control their defecation.  Some do it for sanitation, others to prevent detection.

Other do not, and just poop when and wherever.  You have that luxury when you are high up in a tree, above everything else.   Controlling it would be like you trying to blink only at certain times.   You could do it for a while, but it would be unnatural and exhausting.