Hi, I am new to having ducks, I have 4 ducks 3 female and one male and I have an Aylesbury broody duck that is sitting on her eggs for the last 2/3 weeks, i know the eggs were laid a least a week before she sat on them and now she’s sitting on them constantly, was she to late sitting on them to hatch, i candled a few of the eggs when she left the coop today to get food and all I can see is the yoke I can’t see anything else. I’m confused as to how long to leave them and how long till I just leave her sit on them for? Thanks for any help.