Minor background....we got a coop and 2 hens (about 1 1/2 years old) from a couple who was moving and couldn't bring their chickens with them. So we transported everything to our property and set it up about 2 weeks ago. The transition went very smoothly and didn't even interrupt their egg-laying at all. 2 of the last 3 days, one of the hens laid her egg on the floor immediately below the nesting box (while the other laid hers in the typical spot). There are 2 nesting boxes in the coop, but both hens generally have always used one of them (as was told to us by the previous owners and verified by us during the initial 10 days). We haven't changed any of the feeding habits, or bedding materials, or other key details from their prior life other than the physical location of the coop/run from their property to ours. The spot on the floor where she has laid the egg is basically just plywood, and doesn't even have a large amount of pine shavings (none gathered up from the rest of the floor to form any sort of nest either). The nesting boxes are in good shape, clean and nice amount of straw which they have formed into a nice nest. Has anyone else seen this occur, where a hen changes where she lays her egg out of the blue? Any ideas on how to get her back in the proper location? Put an obstacle on the floor, put a golf ball/fake egg in the nesting box? Thanks in advance for any stories/thoughts on this!