I'm so excited to have been pointed to this thread
I've got a buff orpington who just recently started laying....hooray!!...but less than a month later, I started noticing that she would scream at me when I came out into the yard, head down, fluffed out and then she started sitting in the nesting box...though honestly, the first sign for me was that she stopped laying! Immediately after I took some orders to give away some free hatching eggs *facepalm*
I figured that if you can't beat em, join em. I gave her 3 eggs to sit on, and so far she's been a very diligent momma hen.
I went to collect from my other girls today and realized that momma hen now had 6 eggs under her! I guess the others are laying in her nest while momma goes out to eat and forage! Oyi
So now, I'm just keeping a careful eye on what's under her...luckily I marked her eggs so I'd know which is which

Phew, best idea ever! lol
I'm really excited to see if anything hatches!
I do have one big question [and one little question] though, since broody is still a very foreign concept to me
How long do they usually leave the nest to forage? Is there a time frame imbedded in their minds, or is it possible for them to hop off the nest to eat, and then forget that they are supposed to be sitting on eggs? Today, she came out in the morning and was out eating/pooping/pecking for about 30 minutes and then went back...but the day before, she was out for like an hour before I panicked and put her back on the nest! lol Should I keep my eye on her? Or leave her the heck alone. lol
Also, I'm worried about her eating/drinking enough? I'm sure she won't starve herself, but this is my first go at broody hatching and I'm scared she's going to starve herself rather than leave the eggs....I'm been giving her handfuls of feed...she'll growl at me, puff up and then realize that I've got scratch/sunflower seeds/feed for her, and she'll settle down and eat them out of my hand. This isn't going to hurt her, right? I don't want her to stress out but my fear of her starving outweighs my fear of stress.
Right now, she's in the main coop with all of the hens, when/if they hatch, I'll be moving her to her own little coop so she can rear her babies in peace. lol