Seems my male always has them the worst....and of course spreads them to all the girls.Alas, after many years we've finally got lice. Finishing up hatching egg collection, butchering male breeders this weekend and will put the flock back together for Monday morning treatment. Happy I found this thread for dosage but can't say we're happy for the reason. Oh well, wood ash was only preventative measure and oddly only the hens use it for bathing. Breeder males have shown signs of infestation for a while now and recently the lice have moved to the girls. Figure I'll spray each one in turn taking out of coop in morning then clean all the liter and nests out for coop spraying. Shouldn't take too long to air out with back access door propped open. Course I'll be doing it alone with pump sprayer so thinking I'll sport goggles as I can already see myself fumbling with a bird one hand and long wand spray handle other. Yup, going to be a fun time...