The toes are not curled so I don't think that the tendons are torn. It has only been two weeks since I found him this way and the knot has always been hard. The leg is straight but painful as he won't put any weight on it. It could be broken, IDK.
@barkerg
Im betting free ranging will help him. My observations, being that it is hard and knowing how fast birds can heal, its possible that he injured it and it has healed, the good thing is that his toes are not curled which lends hope for a functional future. Exercise is a good therapy, but Im doubtful in a full recovery and expecting a limp.
Gerald Barker