This looks like severe mite infestation to me.. Like they have anaemia. I've lost one hen to mites. Definite cause of death. She wouldn't roost because she was missing toes, so slept in a kennel with hay - mistake #1. Hay and straw are ideal habitats for mites.. So she went to bed happy and normal. I reached in to pet her good night (she was a real pet) and mites were crawling all over me. I was going to tackle it in the AM. It was late. Didn't think 1 night could make a difference. Boy was I wrong.. In the morning she was lethargic. Mites EVERYWHERE. Little reddish crawling disgusting things.. They would get on our skin and it was hard to get rid of them all. I took her right in - washed her and dusted her, but she was too far gone. Too anaemic. Her face looked very similar to your girls.
Mites suck blood from the host at night, so you wouldn't find an infestation on the chickens in the day unless it's northern fowl mites.
Mites suck blood from the host at night, so you wouldn't find an infestation on the chickens in the day unless it's northern fowl mites.
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