Place one stone foundation with three walls and a doorway. Then place doorways on top so you have a 1 x 1 base 2 high. Then tranq away run into your hut and keep tranquing with arrows or darts it will start to runaway so you will need to chase it. Throw in the exceptional kibble and usually you don't need many narcotics. I put spiked walls and go off and do what I gotta do come back in a hour or two and Boom! You have the only Berry collector you will ever need.
These are the easiest tame ever, just get far away, shoot it with a crossbow repeatedly, when it gets close run and shoot, then boom u knocked out a brontosaurus (I literally have 5 of them that’s how easy they are to tame) please