One girl isn't laying yet and has a little split in her beak

[natrussell]

I am a new chicken mom this year and I have two aracauna girls. One started laying about a month ago right in the " normal" time window. My other girl isn't laying yet, doesn't seem to show any inclination for laying, and has a little split in her beak. My question is this, they eat the same things, have access to the same areas and resources but the one isn't laying... Any ideas? Also, could she need a beak trimming? Thanks in advance!