Best way to tame these

Build a Taming Raft Dino Door+Cage with Windows to shoot through

Tame a pteranodon

Look for some low level Argis to kill for Prime meat

Only try and tame level 130 and above

Lure the Argi to the boat by letting it hit you ever 15 seconds or so

Trap it in the cage

Shoot it with a crossbow (narc arrows)

Feed it the prime

Bing bang boom there ya go

After that just fly around to exporters notes to get leveled fast and take down some brontos.

More Argentavis Taming & KO Tips