We recently lost our black australorp chicken. See photo above. As you can see her comb went black and floppy she just sat around and despite bringing her inside and nursing her my husband had to put her out of her misery. Now it looks like my Sussex is going the same way! I wormed them last week and they have been dusted with mite powder. We cleaned out and disinfected the coop after Kendra died. Please help I don't want to loose Bridgit too! Our red leghorn is fine at the moment. They have all just mounted and are not laying.