Got some strange activity going on: I have 11 runners, one has hatched 4 eggs and sitting on another (a donation from one of the others, who knows when). She still acts like it's viable - hissing and pecking at me when I approach, so I'll let her sit for a few more days I guess. One of the other runners decided to sit and over the course of 5 days, collected 15 eggs. Maybe it got to be too much but another runner has arranged a nest right next to her and between the two of them, there's 18 eggs. I've seen them moving eggs between nests so I have no idea which eggs came 1st. It's kind of cute - they set right against each other on their respective nests which butt up to each other. Is it common for ducks to set on eggs so close to each other? Is there a group mentality where if one duck gets tired another steps in? What happens when some start hatching while the other eggs have possibly a week more to go? I planned on moving the ducklings and Mom to a segregated area within the duckhouse when they hatched but now I am afraid a change at that point will trigger the duck still setting to abandon the unhatched eggs. This is my 1st hatching and the books I've been reading discuss incubator hatching mostly, but not much detail about Mom hatchings or this kind of closeness while setting. My inclination is to sit back and let nature take it's course but I don't want to allow the ducklings to terrorize the other adults or put the ducklings in a situation where they could be injured. Any suggestions appreciated. Thanks.
PS: are they stealing each other's eggs or sharing responsibility? Will that behaviour extend to hatchlings?