I didnt read the article posted above, but as far as moving the hen and chicks goes, I think it depends on your flock, and your hens place in that flock. There are a lot of variables, and for safety's sake, I move the hen and chicks.
Sadly, I have had super hens leave thier nest to protect a...
Once a hen starts to firmly set on the eggs, not get up and walk around during the day, her body temp will rise and bring all the eggs to the same stage of development. Once that rise starts, an egg will need between 21-23 days. Most will hatch on day 21-22, but a few stragglers will come...