I have always heard that Penkins won't sit on their nest, but one of my girls may. Problem is they run my back yard all day and are only in their coop at night. I have to close the door to their coop during the day to keep my dogs out, who egg their food, eggs and other grossness . However, I have one girl who sits on the nest, which has become a dropping spot for all three girl's eggs, throughout the whole night. She also "yells" at me when I go to collect eggs and then searches frantically for them. I feel kind of bad for her but I don't know if locking her in the coop alone all day would be good either. I have never even thought of letting one hatch their own. Any suggestions and advice if I do lock her up and let her sit, like extra food that she may miss out on from not rutting through the grass all day?