When taming these, if you find one out in the water, punch it then follow it inland it will land there and you can bola it and KO it. On rare occasions they may land on your boat making for an easy tame. Most common around Craggs Island. They make super cute noises aswell. Remember they only eat fish meat and they eat a lot of it so stock up b4 hand. If taming on PvE don't expect to find fish in small rivers. The worlds are far to established and fish are very scarce depending on the area. Not a lot of narcos are needed though as their torpor depletes very slowly
Ever need lots of raw fish. Easy! Instead of swimming around in the water risking getting attacked by megapiranhas, simply make a saddle for your Pelagornis, Ride it into the water, and it one shots every small fish.