Dirt, or mites?

[misshell]

My pullets love to dust bathe in the dirt, but I am wondering if this is something else, like mites? What do you think?

 

[Painted Calls]

Just looks like some stuck dirt. Maybe take a dry cloth and try to brush it off.

 

[misshell]

Just looks like some stuck dirt. Maybe take a dry cloth and try to brush it off.

Thanks! I will try. Hopefully she will let me.