I recently adopted some chickies that were being picked on in their flock and two of them are missing a lot of feathers. Picking no longer happens, my girls took them in and let them be. I have had them for about 2 weeks now.. and not much sign of the feathers coming back.. I am just wondering how long it will take for them to get their feathers back, as it is getting COLD here in Colorado... Any help will be greatly appreciated.