My sister has a Black Cochin that is broody and is sitting on three eggs. My concern is that the eggs are in a nesting box that is about three feet off the ground. They have three rows of nesting boxes with 4 boxes in each row 4 are at ground level 4 at 18 inches and 4 at 3 feet. Is there any way to move her and her eggs before they hatch? She will be at 21 days on the 23rd.