My mallard sat on her fertile eggs for 23 days then 2 days ago stayed out in the yard ALL day.. She has never done that since she started nesting on them.. The most time she left was maybe a half hour.. I candled them when I realized she wasn't sitting on them and there was one egg that must have went bad a week or so ago but the other 7 looked liked they were in their final stages of developnent.. I locked her in with her man and nest yesterday but the eggs are still cold.. I could tell she turned them but why isn't she sitting on them? The outside temp here for the past few days has been 40-50°.. My question is are these eggs going to survive? Why would she do this days before hatching? Thanks in advance..