I have a Cucko Maran hen who is ALWAYS broody. So, I am thinking... can I get fertile duck eggs, and place them under her,a nd will she hatch them? also will I have to put her in her own seperate coop/run? Thanks!
She will hatch them and yes you need a separate area for her and her ducklings.
And also she might abandon them since chickens take 21 days and ducks take 28 so I would be ready if she does abandon them. But I wouldnt worry to much