I have a duck that just went broody today for the second time in like 3 years but was wondering how long can she go off forraging before they get to cold and die?? I let the ducks out of the pen for the day and she goes out with them, i let her out for about 15 mins and she seemed to have no interest in going back to the nest, so i locked her back in the pen. Am i being overprotective and will she just go back in her own time?? How long can the eggs survive with her gone?? Thanks