A few week ago I noticed one had a bald bum, then she had a broody spell so I thoight it was her plucking feathers or something.
Since being home from hols about 5 have bald bums so it can't be that.
I assume they need worming again but would that cause bald bums?
Weirdly its only the dark colours hens who are bald, and its all underneath so I doubt its other hens pulling the feather because it'd be difficult to reach the area.
Is there anything else it could be?
I have looked through the feathers of a few and can't see and mites or anything.....
Any ideas?
If it is worms how on earth do I make sure they all get enough medicine because AFAIK it goes in the drinking water.
I want fluffy hens again noit tatty threadbare ones.