Does the spawning and visibility of Magria and Ankha tie into the phase you're in in Mount Hyjal? I ask because I levelled just enough in MH to get myself in place to move to next zone based on its mobs level and didn't do all of MH. I've resigned myself to start trying to get a few of the spirit beasts for the hell of it and wondered about these 2 first off.
**EDIT**
I should've added this is on my alt hunter - not the toon listed in the signature (the monk). So no, I'm not trying to kill any of them but rather tame them.