I've put half a handfull of feed on the floors of nest boxes before and it's been fine. It ends up there anyway.I'm thinking something that isn't likely to tip over. I will kanoodle on this.
There is not as much spare space in my nesting boxes as there is in yours. Could I put them right in front of the box? I don't think I could get them in the box with her.
Maybe even better in you situation given you have other hens coming and going. The water right by the nest box edge should be fine.



I'm a bit miffed that I can't let any more hatch this year with the current population.
I'm not short of volunteers.



