My Silkie Margo has been ill and has been on a course of antibiotics. During her illness she lost some feathers from her chest and I was told these will not return until Spring ??? I saw an advert for knitted chicken vests. As it is winter now and quite cold outside I contemplated getting one for her. However I was advised against it. Are chicken vests a good idea or not? Will she be best left to keep warm in the straw in the coop until her feathers regrow? How long after losing feathers does it take for the new ones to appear?. Thanks everybody for your super help and advice.