Yep - a dump nest. Make sure the entrances face 180 degrees away from one another or move further away.
BTW - Why on earth are you checking the number of eggs in a box during nesting season? Refrain from checking during laying/hatching - you might inadvertantly scare off the hen for good. Check the brood mid summer or later in the year for success. We typically measure success, clean ours out and put in fresh bedding in late January, February and early March here in NY.