How many of your conlangs have animal noises? Do you have specific animal
species in the worlds your languages inhabit as well?

I've just found my old notes for one of my conlangs, called Yuun.

Animals are kept in an area called "Maab kihaa", or "Place of livestock",
and they all have different sounds, e.g.

sheep - dκκκκκκ
a certain type of local bird - reeeeca
lizards - tetetetete

etc. I'm toying with the idea of writing a couple of children's books in
Yuun, just for fun.