Knockout a tamed paracetamol in its cage, stand on the paraders back so the troodon will hit it, and injure the parader enough to where the troodon can kill it, and boom! Easy tame. (Also do this at night for x2 taming
At lvl 72 with flak armor on, a lvl 5 Troodon knocked me out with one attack at night. Last thing I saw was those glowing eyes before passing out. My Guess is that they attack vital organs. Luckily my Doedicarus was up for a game of baseball and launched that little devil out into the stands.