Board Thread:Speculation House/@comment-27883360-20160305074527/@comment-24198837-20160327230933

We're not certain he has that ability. It's implied, but not confirmed.

Also, Crows are animals. Dragons, in most settings, are not. In all truth, a human turning into a dragon is more like a human turning into another race - elf, orc, etc. - than into an animal.

At least in DnD, chances are that any given dragon is smarter, wiser, and more charismatic than you are.