Its not supposed to be noticable on their bodies at all. They shed a couple of feathers now and then anyway all the time (like one or two), but once a year, they go through a heavy molt, which includes the shedding of their tail feathers as well as their crest. It doesn't make a difference to their appearance. You will just find long tail feathers laying around. Logan, since its only been a year, it is sometimes delayed for more than a year. Maybe you people just vacuum so much you never notice.