Echo has recently gone through a very heavy molt. The feathers that are coming through are beautiful. In admiring these I noticed that some of his old feathers are looking a bit shabby. Especially the ends of his wing feathers. The ends just look super worn. Like not chewed just as if they have been run through that beak a few too many times. I do think at times he is a little rough in preening. When I picked him up 6months ago he had a few feathers on top of his wings that where missing some parts of them. I presumed it was from learning to preen. The new ones look fine and undamaged. His general appearance has gotten nicer the longer I have him. My question is could the wing feather tips be the beginning of barbing? What age does barbing start? When is he likely to molt the wing feathers out? How rough is too rough in preening? At times I've noticed his beak gets a sharp bit on it....could this be damaging his feathers? He recently snapped the tip off his beak. Any tips advice greatly appreciated.