Dorkings never quit a nest hu? Never beat up the babies when they arrive either?
Remember not to generalize, because there are differences in lines within a breed. Duane Urch told me that he did not want broody Dorkings, so selected against it. Craig Russell selects for broodiness. In my experience, Dorkings from McMurray's are not broody. Sand Hill's are very broody. Dorkings from other sources vary in their desire to go broody. About 50% of my Dorkings will go broody. Those also have a tendency to hide their nests if free ranging. I've only had one hen quit a nest, that was when I attempted to move her nest into the coop.