Hi , yes it looks to me like he has Scaly Leg Mites. We had a Silkie rooster who was always getting them, seems to come with feathery feet. Soaking in warm Epsom salts and water solution will help his pain and healing. You can then apply any kind of oil, Castor oil, Petroleum Jelly, or Camphophenique (sp) all over, from the top of his foot up his drumstick to where the feathers start. (Don't put oil on the bottom of his foot). Since he has feathery feet, Camphophenique might work best for you.
Recently our Alpha rooster had Scaly Leg.Mites. We soaked his legs in a 10 % Permethrin and water solution, and then did it again two weeks later. WE also sprayed his roost with the solution. Although this did not totally rid him of the mites, I think it did shorten up the period of time he had them.
He was still lame after that, so we then confined him in a small pen to reduce his activity and allow his sore leg/foot to heal. I have been soaking him every day in warm Epsom salts and water, and follow by painting his legs with Castor oil. The mites are gone but he is still lame though healing quickly. He has still been in hospital pen for over a week, just so you have an idea.
If your rooster has open sore places on his feet or legs, I might hesitate to suggest the Permethrin until they heal up. It is nasty stuff but like I said, I think it did help to kill off the mites and speed the healing process. You can always start with the Camphophenique, and then maybe try the Permethrin soak later. If you don't use the Permethrin, it can take awhile for the mites to be totally gone.
You must treat Scaly Leg Mites however, because if you don't, the bird most likely will be seriously lame and damage can be permanent. They can also lose toes as a result of Scaly Leg Mites...which is called Toe Necrosis. You have to treat and monitor him until the scales are flat and his legs are smooth, and he quits limping.
If you use the Permethrin, it's 1.28 ounces of Permethrin to 1 gallon of water. Soak up to the feathers at the top of his leg, for 45 seconds.