Why are there no creatures in all the "burrows" and nothing shows up when I right - click? Also, what can I do to make the creatures in the "burrows" be the ones I want?

Why are there no creatures in all the "burrows" and nothing shows up when I right - click? Also, what can I do to make the creatures in the "burrows" be the ones I want?

Not mod creator or anything but sometimes the burrows take time for creatures to come out after clicking, you just have to be a tiny bit patient. As for the making them have what you want, unsure. You could always add a mod that allows spawn eggs to drop and go on a slaughter spree to get spawn eggs. Otherwise, just look in certain biomes for certain "breeds" of each species.