The Easiest Way Of Taming Quetzals is The following Below!

Tapejara: Have a Friend In The Front Or Back Shooting It.

Pteranodon: Have a Friend Pick You Up And Shoot It.

Argentavis: Have a Friend Pick You Up And Shoot It.

Quetzal: Either Use a Platform And Build a Quetzal Catcher Or Have a Friend Sit On The Quetzal With a Normal Saddle And Shoot It.