You can ride them? [ That actually does bring about a new note of interest. ] Do they fly?

[ Even as she speaks, Shijima holds out her hand to Chaos, almost absently. She's used to animals being intrigued by her scent. She's a cat, even if she's not currently shaped like one, and she's felt that curiosity before as well, scenting things that aren't what they appear to be.

Lumina still has the acrid smell of chaos, but it isn't one Shijima minds. ]

I've never heard of a bird learning magic. Though I knew one who learned ninja arts.