My Mallard hen has been laying eggs for several weeks, but she kept moving her nest. She finally picked a spot she's happy with (in our garden) and laid an egg a day for a week and a half. The 2 Drakes and the hen willingly go in the chicken coop with our chickens at night. Last night, it got down to 28 degrees and of course, she wasn't sitting on her nest. But today, she sat on the nest all day and didn't retire to the chicken coop with the drakes and chickens. So, I left her sitting on her little nest in the garden. My question is this,...Are the eggs ruined because it got below freezing last night? Should I remove the eggs so than she can go back into the chicken coop at night for safety's sake or just let her be? Not sure what to do. This is our first time with a brooding Mallard hen and of course it would be when the weather is getting cold! Any help would be greatly appreciated!