The closest thing to a rooster that Abby interacts with regularly is Polyphemus the Starling, and perhaps she’s extrapolating the pooping habits of roosters from that.
I have a weakness for “use this word in a sentence” jokes. I admit it. It’s kind of the whole basis of Abby’s Youtube Channel that can Make Any Medication Name into a Song. I think both she and I realize how silly it is, but we just can’t help liking it.