When knocking out,place 3 dino gates along each other but not connected. Place gates on each side and lure it in. Then lock the gates on each side so the argy is secure and then fire away with Frank's.😁
An argentavis can't fit through a ceiling with one tile missing, but a pteranadon or lymantria can. Build a trap with one corner ceiling missing, aggro the argentavis, fly in one side and out the missing ceiling tile, and land. Dismount, run around, and close the entry door. Tame safely at your leisure.