Easiest way to tame is knock out the Pogo and build a small pen around it that pretty much only the two of you can fit in. Be cautious though because it doesn't have a torpor meter, it will lose health. I don't know the exact amount but it seems to be a percentage based off of its health. It will not lose tame bonus from this, just make sure to swap your berries to the last slot in your hot bar. You will need a couple hundred berries I tamed a lvl 25 and it took about 4 stacks on a 1.5x taming weekend.
When you see one, put any kinds of berries in your last inventory slot and walk up to them slowly. They will take the berries and it will add to their bar. Just keep doing that over and over
-bboss505 (pls up-vote
'You have been robbed! 5 fiber'
Ah, look at it run with the little bag
'You have been robbed! 3 wood'
I dont need that anyway
'You have been robbed! 100 narcotics'
O HELL NO
'You have killed! Pegomastax lvl 10'