I noticed one of my silkies now at 6 months seems to have a crossed beak. Is this something they develop due to the beak being to long because i never noticed it up until a couple days ago and i do a fair bit of up close handling of my birds. A better question if they develop it can i trim it to fix it? She doesnt seem to have a problem eating or drinking but is noticable smaller then the others. In trimming how far back should i trim it?