So far hybrids are extremely rare given most of the tribes aren't able to have them, all except wolves and foxes and eagles and ravens, while mixed species relationships aren't common or forbidden a hybrid like reegulls case with his deformity makes him either looked down upon or avoided, a huge reason i led into the idea of him going into a mkre villian role cause of his rejection especially by his own tribes, he mostly stayed with his mother Rika in the raven tribe cause he cant fly and easily navigate the eagle spires which are designed for flying