Not really. I never let mine spend the night on their hidden nests. I force them off of the nests and herd them into my secure coop for the night.
I also collect the eggs daily and keep a minimum of 3 fake eggs in the nests to keep them from making new nests. If I want any hatched, I...
Where are you located?
In the southern hemisphere, it is likely guinea laying season which may mean that your hens are sitting on hidden nests. They are extremely vulnerable to predators at this stage.