Cart seem not to be able to tell the truth about anything

to be honest nearly all the populist articles about angel wing are somewhat flakey in their scientific background. You can feed adult birds white bread as much as you like, it will not cause angel wing. It is a genetic weakness of many bird types, particularly water fowl and is caused by any of many factors including but a long way from exclusively, too much carbohydrate consumption during early growth. It also occurs due to insufficient excercise, too high a protein diet or even a vitamin deficiency.

If you are going to stop overfeeding then you need to stop all feeding, of course a hell of a lot of ducks, geese etc are going to die from malnourishment but never mind ..... it's green innit