If you have a wyvern, you can lure the Kentro under its neck, then place two spike walls between the wyvern's head and wingtips to trap it. Then dismount and fire tranquilizers between the wyvern's legs to down the Kentro.
Eats Compy Kibble. Usually spawn near the bottom of mountains. When using kibble, no narcotics are required. A level 80 will eat about 21 compy kibble during x1.5 on offical servers. About 7 tranq darts were used to take down the level 80