I am looking for a bit of advice from all you chicken experts please
Henry our Blue haze is laying quite fragile eggs (the shell is quite thin in parts). I have added more shells to their layers mash but this doesn't seem to be working. I have three hens, Tilly is broody and not laying and Rocky's egg are fine (really thick shells), so was wondering what else it could be. Also to add that Henry's feather look 'greasy' and when it rain she get soaked, unlike the other two where the rain forms droplets and roll off them (if that makes sense).
Any advice please