Fowl pox bug bites or something else?

[Mouthwash]

Noticed for a few weeks my chickens have these black spots on their combs. They live on dirt so I thought maybe just dirt but I'm not so sure

 

[Mouthwash]

Another chicken

 

[Eggcessive]

That is. It fowl pox, but could be small pecks or even fly bites.

 

[Kiki]

That is. It fowl pox, but could be small pecks or even fly bites.

I think Egg was trying to say that is not fowl pox.