From publisher blurb:
The Official Sergal Racial Guide
The famous anthropomorphic race created by Mick39 and Kiki-UMA from the world of Vilous comes to Pathfinder!
(If you are not familar with sergals or Vilous. check out this wiki!)
This is a product officially endorced by Mick39 and Kiki-UMA (AKA the parallel bird friends)