In a particularly creative expression of anti-MAGA sentiment, a man who goes by the username “biz_dave” says he successfully trained crows to attack MAGA hats. As detailed in a series of posts on Threads, the self-proclaimed “big nerd” and “very part-time artist” stuck some tasty treats, including “peanuts, chicken scraps, mealworms, and dog kibble,” underneath a MAGA hat.
“Once they were coming regularly, it was only about three months to get them to the hat removal stage,” biz_dave wrote.

You know, he answers that in detail. One, he doesn’t know how to train them to poop. And two, he doesn’t want to be a poop trainer.
i read somewhere that birds cant control it
Some birds do use poop as a defense. So at least some can to some degree control it.
Eh, something like that could be a fear-induced reflex. Even some people may wet/soil themselves in fright.
Oddly enough, that would mean that given the impulses of “fight or flight,” an animal that can literally fly will crap itself instead.