Gachas are a passive tame creature. Like so dododex can see

Just harvest stone and drop it on the ground near them to tame. Crystals and gems work too, but stone works best. Much easier to gather than owl feces. Up vote so everyone knows.

Does not instant tame on insta-tame servers, fyi.

Warning. Using snow owl pellets no longer gives high efficiency. It is only as good as using stone structures.

Feeding greenhouse ceilings has around the same taming effectiveness as metal and tek structures. Get this added to the calc.^^^^