Hello and a belated welcome to BYC
Thank you for sharing pictures and your update.

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Just create a new thread/threads in the forum that seems most appropriate.I gotta get my thread moved lol. I'm getting beyond introduce yourself
They usually keep sitting for 2 to 3 days after the hatch begins.I ended up just using some wire mesh to partition the coop. Hens can still get to a couple egg boxes, broody gets coop to herself. Mesh let's them see each other.
I've had 3 of the 6 eggs hatch so far. I'm not sure otherwise, broody won't leave the box or let us peek at what's going on. Just hoping she kicks into mom mode before the chicks that are hatched dehydrate