I am not an injury expert, but it seems to me like bandaging the wing in place is a good first step until someone else can give you a more complete answer. worst case scenario is that it heals in the closed position and he can't extend it fully, meaning he can;t fly well, better than having it hanging out at an odd angle at least.

I've used 2 Popsicle sticks and super glue. I takes 2 people-one holding and the other doing. Stretch wing out and align the broken bone(s) place a ps stick along the break on the top side holding it firmly in place then squirt glue along each side of the stick between wing and stick. Repeat for the bottom side. Wrap wing to body with ace bandage tight enough to keep wing from getting caught on things. It will mend in approximately in 3-4 weeks. The glue will come loose on it's own about the same time that the bones are mended enough to go without support.

Thanks for picking up where my knowledge failed sermas.

mary_d_ia it occurs to me that you may want to increase the protein and calcium in the diet during this time.

If feeding a 16% layer ration your protein and calcium are on the high side for any male poultry requirements. Any higher will cause calcium deposits in muscles, joints and kidneys in the Rooster.

brendan_of_bonsai,

May I recommend a good technical read:

Nutrient Requirements of Poultry
The Ninth Revised Edition, 1994
written by the Subcommittee on Poultry Nutrition, the Committee on Animal Nutrition Board on Agriculture and the National Research Council