DO NOT PICKUP WITH ARGENTAVIS. I did this and while I was flying it over to my taming pen, it somehow knocked me off. It was attacking me all the way to the ground. Luckily wasn’t very high level so I was able to kill it before it killed me.
So I kinda wanted to tame one so I went to grab one with my argy…
He grabbed me off the argys back fell into the water with him I pulled out my sword and killed him then all the STUIPED TORPOR DEALING SNAKES CAME AT ME I made it out alive but I almost drowned while I was knocked out I made it to my nearest outpost from there I grabbed my pteranodon and flew to whistle my argy and flew home
PS: it is useful to have outposts where you can retreat also the outposts should have a flyer and supplies. I have 1 in redwoods 2 next to diff parts of swamp and some others through the map