The thing that differentiates bleeding due to implantation and bleeding due to periods is theimplantation bleeding color as explained above. Implantation Bleeding vs. Period. There is little difference between menstruation and implantation bleeding to begin with and the first couple of days can be very confusing.
Ducks can spend a week laying eggs.. the timer for hatching does not begin until they actually begin to sit or brood.. Fertile eggs can be laid and sit and be fine with no mom on them. as long as they dont freeze.
As the last egg is laid, the female starts to incubate. She sits very tightly, and her brown plumage blends her perfectly to the background. She rarely leaves the nest apart from short breaks to feed and stretch her legs. About 28 days later the eggs hatch together. This takes about 24 hours. The ducklings stay in the nest for at least 10 hours while they dry and get used to using their legs. Then, usually in the early morning, the female leads them to water. Bad weather may delay this exodus, but the sooner the ducklings get to water to feed, the better their chances of survival.