non of the dogs are picky, I mean there are a few select things they wont eat, like Happy wont eat pork hocks, but otherwise not picky. Shadow was picky, she does not like banannas, potatos, pork hocks, or fish heads(I think the eyes creep her out lol)

Kari, my rabbit is picky, things that most rabbits love Kari will grabs and throw it away and stick her nose in the air lol

the guinea pigs and the gerbils are not picky

and my Betta is picky, he only likes his food in "crumble" form lol