Personally if it was me I would cull, out of respect for the hen. But my DW has vetoed the deed a few times. Sometimes it has resulted in great pets, other times I just had to do it while she was not home and lie to her. Sorry I know that may upset some, but I am sure she knows I am fibbing when I tell her they just expired. So far out of around a hundred birds I have 1 one eyed hen, one blind hen, one rooster who survived mushroom poisoning that had to completely learn how to walk, crow, and fly again. Another rooster with a dislocated tendon that seems to be recovering to normal.
The problem is if you are not going to take the time to make these crippled birds pets it is best to put them down. For the most part they will not be accepted and sooner or later done in by their own. For a bird without feet their will be no pad on the stump, hopefully the skin grows over and hardens but until then you should make pads and bandage them to the bottom of the stumps to keep pain and irritation down. I actually cast the roo with the dislocated tendon to restrict movement, he now walks normal and the cast is off but I still have the leg bandaged tightly to restrict movement until I am sure it heals. These bandages need to be changed and skin aired out every other day, and this adds time to my routine. Fortunately I am home to do this, but I got sick the last couple days and my DW had to do it. I also almost lost a new roo when another roo got loose and attacked and I was in bed with the flu. I felt awful but now I have another one eyed bird to tend to. You have to be there if the bird is in trouble if it can't fend for herself.
You have to weigh your time and ability to care for the injured bird with the actually quality of life of the bird. You have to be willing to accept a permanently crippled pet that will require extra care.
The problem is if you are not going to take the time to make these crippled birds pets it is best to put them down. For the most part they will not be accepted and sooner or later done in by their own. For a bird without feet their will be no pad on the stump, hopefully the skin grows over and hardens but until then you should make pads and bandage them to the bottom of the stumps to keep pain and irritation down. I actually cast the roo with the dislocated tendon to restrict movement, he now walks normal and the cast is off but I still have the leg bandaged tightly to restrict movement until I am sure it heals. These bandages need to be changed and skin aired out every other day, and this adds time to my routine. Fortunately I am home to do this, but I got sick the last couple days and my DW had to do it. I also almost lost a new roo when another roo got loose and attacked and I was in bed with the flu. I felt awful but now I have another one eyed bird to tend to. You have to be there if the bird is in trouble if it can't fend for herself.
You have to weigh your time and ability to care for the injured bird with the actually quality of life of the bird. You have to be willing to accept a permanently crippled pet that will require extra care.