A griffin is a large, winged creature with the head, torso, and talons of an eagle but the body and rear legs of a lion. It's long, hooked beak is made for tearing its prey apart. Its shiny golden-brown feathers carry it aloft as it nimbly takes to the sky. Griffins can handle harsh weather better than dragons.
They only appear once in the series with Thronis's dwarf, Zogo, in the fourth book at different intervals. They both help capture the team at Wyrmroost and later attempt to rescue the team from a dragon ambush at which Gavin is revealed to be Navarog, and successfully bring Seth to Thronis.