No system message at the moment.
I've changed the Skill.xml as An4rchy proposed:
Now characters can transform into aurabird falcon, while on aden continent but vertical movement still isn't possible and if you click somewhere to move, character doesn't really move. there are just some seconds passing, while nothing happens, then character "jumps" forward.
: //
so well, you thin I should re-change skill and look for the message when trying to transform?