How to tame an argy;
Step 1. Craft 4 Dino gateways and 2 doors.
Step 2. Place the gateways near enough to each other so that argy can't get out and you can. Then place the doorways on the end two gates. Leave one open and one closed.
Step 3. Aggro an argy and get it to follow you through the gate. Run out of the trap, and quickly shut the open door so that it can't escape.
Step 4. Knock out and tame the argy.
Voilà, your athey is tamed.
Take a couple tranq arrows and hit it a couple times but be ready they attack
When it starts to fly away hit it a couple more times
Then put a couple meat stacks in the invo and bio toxin
Then you have a a Argentavis
1-2 tranq darts in head and he’s knocked, go get some meat and kill some of those jellyfish and get bio toxin then put the bio toxin in it and feed it until the argies hunger is on 1000 or less then put all your meat in it
I built a trap with 3 stone dino Gates no one raft. Raft was not damaged, easy and relatively cheap portable argent trap.
Hunted for an Alpha Carno with my dire wolf pack, they killed him in less than one minute, easy prime easy argent.