nice. yeah thats the same deformity that mine has, only on that parrot it is more pronounced. interesting. I have also seen a flowerhorn with a notch like that
I don't know how desirable they would be but I would keep a healthy example as an oddity. I wonder if the one in that video is for sale? They obviously segregated it from other parrots.
you never know how they keep them in vids like that... the parrot is put in the tank so the fh will display to it to show off the fh to best effect. noone keeps parrots like that unless theyre a pair because eventually the parrot will be killed