I have a year and a 1/2 old barred rock that's been a great layer, but in the last week or so I've found four of her eggs splattered on the poop tray below their roosts. I can only guess she's laying at night and confused? Any tips on what's going on and how to change this behavior. Prior to this she was happily laying in the nesting box or occasionally finding a spot in the yard. Thanks.