Healing wound- when to allow back with flock?

[OhioClucker]

My chick is healing from his, ahem, sudden amputation of a wing nicely. He is currently separated from the flock, in his own pen with food and water. The wound has yet to form a scab, but is in the process.
In the evenings I place him outside to free range with the flock under my supervision. There has only been one incident where one of the others pulled at a feather. They all roam together and don't fuss over the injured one. When I separate him back out, he cries for a while. I do keep him close to the others so they can hear each other.
When is the best time to put him back with the rest of the flock? When the scab has formed? Or when the scab falls off?

 

[amnich]

If they're not bothering with it I don't see a huge reason to keep him separated. Maybe keep him in until it completely scabs over to prevent any infection that could start as a result of being in a coop. If they seem too interested in his scab, you can just dye it a different color since chickens seem to be attracted to the color red. Blue-Kote is good because it kills germs and stuff in addition to turning the wound blue.

 

[ten chicks]

My chick is healing from his, ahem, sudden amputation of a wing nicely. He is currently separated from the flock, in his own pen with food and water. The wound has yet to form a scab, but is in the process.
In the evenings I place him outside to free range with the flock under my supervision. There has only been one incident where one of the others pulled at a feather. They all roam together and don't fuss over the injured one. When I separate him back out, he cries for a while. I do keep him close to the others so they can hear each other.
When is the best time to put him back with the rest of the flock? When the scab has formed? Or when the scab falls off?

I would keep him separated for a little longer,that is a serious injury. All it takes is for one to start picking,then they will all be after him,could have dire consequences.