If your on mobile and can’t find one of these guys start the tame equus pursuit and walk or fly around the island and eventually a arrow will show up on the top left of your screen. If you follow that then you will find an equus or two. Upvoote if you found this helpful.
Put this higher !!So if you play mobile I found 3 in the same spot okay so first do the volcano pursuit the one where it's the cave inside the pursuit should be south of the equator and in that general area if you look around you'll find them
I, as well as many other had a hard time finding these guys. So. Lemme tell you how to find them. Over around the green obelisk, just follow the rivers, and they will spawn. Or, if you live somewhere around hidden lake, they spawn next to the big ramp like hills. Usually down right by the water. Usually just one though. I have also found three unicorns before, two in the swamp, around the obelisk, one next to the river, south west of the hidden lake. And yes. Do eat the residue, the screen filter is amazing.