Help! Cochin cockerel limping - abscess(?)

[EggPlant Mama]

Those black spots are what concern me too, that's why I thought the mites were the problem. If not scaly leg, maybe feather mites? The problem with pictures is they sometimes don't show all the detail, or the issue looks different in person from what you can find online. I would start with coconut oil myself and monitor until I could figure it out. I hope he's feeling better soon.

thank you