If you want the hens to hatch them, just leave them. I read somewhere that the time they spend on the nest daily does help the eggs maintain their viability for longer than normal. I have pulled eggs out of a nest that were at least 2 weeks old and had them hatch fine.
Are these nests in a pen or outside somewhere? If outside, you risk a predator getting your hen if she is allowed to brood there. This is a very common way that people lose their guinea hens.
Can you leave a lot of eggs in the one in the coop but take enough eggs from the outside ones that they are less likely to go broody there? If you want them to sit on the nest, inside would be much safer. I would not keep more than a dozen in that inside nest to be incubated, though you could potentially wait for one to go broody on it before thinning it down… I keep about half a dozen marked eggs in my outdoor nest to encourage them to keep using it. They do get tired of their eggs disappearing though and periodically abandon it and start a new nest.
Best of luck! Let us know how it goes!
A hard lesson to learn. My guineas free range but always roost in their coop at night.. I lost 3 hens last summer while nesting with the last one just outside the electric goat fence and I also have 2 dogs. Chances are you will lose the outside guinea.
