Is this beginning of feather destruction?

View attachment 250166 View attachment 250165 View attachment 250167 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...

Is this beginning of feather destruction?