Mother does know best!
and when mine was laying on her eggs I didn't bring food to her because I heard from other people that they do get up and find food and such, but I stopped listening to that because she literally stayed there 24/7 and did not get up what so ever and I gave in and brought her some scratch in an egg carton container and some water. But people do say that the hens will find food and will find food for the babies as well. But I'd maybe put it beside her so she can have it there and won't have to disrupt her eggs lol

