Seeing as I'm still fairly new to ducks, this being my first season with them laying full time. I have some questions/clarifications. My incubator arrived today, so will be anxious to get it going. ducks = 28 days chickens = 21 I know that I can add chickens a week after duck for same day hatching (hopefully) now, I keep reading about duck breeding season, the reason why drakes are so annoyingly protective right now. Now how long does this last - breeding season/bad drake behaviour. and why is it classified as breeding season, when they mate all year round? If the drakes doing his job, the eggs should be fertile as long as the girls are laying , right? I read that you aren't to wash eggs to put in the incubator, but how does one get around the fact that duck eggs are always so darn dirty.???!!!!