hope this isnt a silly question freind of mine a tippler flyer. he flys gordon hughs strain of birds he can go back 38 years with them the famliy was started with three blue birds and has gone on from there. for some reason a an old breeding pair has bred a young bird with a white flight under the main tail feathers any body now the reason for this if there is one he ask me to put it on pb thought it would be a good thread :-/all the years hes had them they have never bred anything other than blues thanks for any replies