Just this morning I noticed that my 9 month old rooster was limping around on his left foot. I went out and was able to pick him up and spend some time thoroughly investigating his foot(he's a good boy about that, stayed still the whole time).The pad of his foot is swollen quite a bit, and it's firm. There's no discoloration or injury anywhere on his foot. I looked all between his toes, and even on top of the foot, and found nothing. Other than the limp, he's acting totally normal, a rooster strutting(limping) about doing his rooster things in his rooster home. Anyways, does anyone have any ideas why his foot might be swollen like that? Thanks.