URGENT NEED OF DIAGNOSIS

[Mamachic1967]

All summer I've noticed my chickens missing feathers and considered they might be moting again, yet it seemed too early. Today I noticed 2 of them with a black crust growing on their skin and another one limping with a swollen foot that is red. I've attached pictures. Please anyone can you help me identify asap because if it is a spreading disease I can't lose all my girls to it. Thank you.

 

[speckledhen]

The foot is bumblefoot, a staph infection. There are numerous threads here that tell you how to treat it.

The black skin looks like she was injured and it is scabbing over.

 

[Mamachic1967]

Thank you. I though maybe Bumblefoot. I will check out the threads. The chicken with the prominent black is the worst of 2 of them and 2 more have a small black area starting.

I described the blackened skin to my father who was a farmer. He said it sounds like "blackfoot". Is that possible or would it just be bumblefoot?