Update. Not good news.
Tootsie's cancer has gone into the bone, as evidenced by thickening of his shank. But now, a tendon appears also to be affected, causing his claw to clench up. He staggers around walking on the top of his foot.
This isn't good on hard surfaces such as rocks, which dominate here. (This place is called the Rocky Mountains for a reason.)
Therefore, while he is still ambulatory, his range is now very limited. I also need to consider that he's more vulnerable to any predator passing by. Also, the tumor's crater is prone to infection. I've been stuffing antibiotic ointment into it each day.
But the worst of this development is that he has trouble roosting. I set up a feed sack pallet for him to sleep on last night, but he still wanted to try to roost. He can still do it if I help him. But he also has a problem dismounting. My rooster is now a special needs animal.
As long as he's still crowing, still crassly defending his food against marauding hens, and his appetite is okay, I'll lend him assistance. But the day looms when I will need to euthanize him.