bird tornado in maps

the bird went in the tornado stage in the fight and never went out of it and started to do different attack while in the tornado stage of the fight

I had this happen to me as well. Bird went into tornado mode and it never stopped. I ended up killing the boss, but the tornado never went away even after the boss death.

i confirm the same behavior... after a while in his tornado, i saw him flickering within his tornado and I was able to attack him, but i died a few seconds later because i was not aware of his next attacks while he stays hidden in his damn tornado... what a freaking lame death in HC