Or any of the wild animals for that matter. I realise that carnivore poop is not good for fertilising, but maybe it could be put to other use (as an inspirational or witching or burning). Deer or beaver poop could be a thing though. Maybe have more of it on game trails. Also, throw it at people in the stocks, that could be fun.
This is not an amazing game changing mechanic, but I thought it could add colour (ie brown).