Hi! Does anyone else find their caique's white feathers look a bit patchy sometimes? Mine has quite a few pins coming in on his white belly feathers and some of his current white belly feathers (especially the ones near the bottom that he ruffles up a lot when surfing) look pretty scruffy with grey downy bits showing slightly but no actual baldness. He's showing no signs of illness at all, eating normally, normal poop etc and all his other feathers are fine. He seems to lose one or two little feathers a day of differing colours and I find them in the bottom of his cage or they fall out as he's surfing. He's 11 years old.