If your in ark mobile, and you have access to potent dust and dodo feathers, craft some dodo arrows and shoot the particular tapejara your looking for with the dodo arrow to activate agro on it and lure them. If your in normal ark (pc, ps4 or xbox) use rare flowers to lure it into a trap.
Hard to do, but aggro with rare flower and pull into a covered pen. Close pen. Need a giant gate at least. Wood or stone works. Then bola and tranq at leisure within safety of your pen. No baddies to get him.
Extremely difficult to tame. Best options are to bola it, and then use a longneck rifle with tranq darts. Otherwise trying to get it to fly into the side of a cliff and get stuff is the other option for a solo tame.