My experince with the heights of nesting boxes is being in a cold climate area that the higher up the more mine like it in the winter,most likely because of the temp/heat lamp.The bottom row for some reason they like to scratch the eggs out of in the open but it might be because i need to raise the board a little to keep there nesting material in boxes a little better.They still seem too always have a favorite box though!My chickens backed in the box always use the right side so I guess my chickens are all right handed!
