What fun! This reminds me of our experience with broodies. We had several (4?) BO go broody at the same time once. We marked the eggs with a marker and removed fresh eggs daily, leaving the hens in their chosen nests. Then the day came when we heard cheeping and panic set in! We were afraid the chicks would fall from the nests! So DH grabbed a hen and I grabbed a nest, hatching chicks and all (in a garbage pan lid, lol!) and we rushed them to a safe location (the well house) and repeated this four times. We blocked the hens from each other visually with large cardboard sheets we had, as one hen was aggressively protective. Whew! Everybody hatched chicks successfully and I survived the ordeal.