I recently got some day old chicks and I noticed one of the silkies has a beak with the top part noticeably longer than the bottom. She is five days old and appears to have hatched this way. Is this normal and will it grow to be more even?
I wouldn't file it at all. Chicks don't have very much extra keratin and any attempt to shorten it will cause pain and bleeding. It appears to be a slight malformation that may require filing at a later date, if the beak halves don't meet in a way that allows the bird to file it down themselves on rocks. As is, it should not cause the bird any issue.