My oldest hen, Cookie, is a barred rock. She, of all my hens, would be broody. Ive had 6 nesting boxes available since before any of my 4 hens started laying.
Before my big 4 x 8 ft coop was built we had a small 4x2? store bought coop with an attached nesting box that divided into 2 boxes. They have to climb a plank to get in it and as they got bigger the nesting area got smaller so I removed the divider. It now fits one hen quite comfortably. Some days one hen is in the "waiting area" to get her time in the nest. Lol.
My question is why they dont use any of the other nesting boxes??
Just because they simply prefer the more private darker one? One hen, a RIR, lays the first egg early in the morning near the roost. The other 3 lay one after the other in the nesting box.