Step 1:tame a flyer that you’re willing to sacrifice

Step 2:find an argentavis to tame I recommend going to the frozen tooth but bring campfires

Step 3:get the argies’ attention with the sacrificial tame

Step 4: land at your preferred taming spot

Step 5:get away from the tame and let the argy start killing it whilst you shoot it with darts or tranq arrows

Step 6:put its kibble or meat in its inventory

Step 7:you will now have an ARGENTAVIS!!!!