a friend gave me two hamburgs (roo and pullet) that have humpbacks. the roo not so bad; the pullet's hump is to such a degree that her tail feathers are angled to the left side of her body and almost touch her left wing feathers. i assume this is a genetic abnormality as roo & pullet are from same parents. is there a name for this...other than just humpback? i'm just curious. both will have a good home with me.