cherrynberry
🍒❤️🐓🐐🐕🐖🐈
Yeah, 3 boxes work nicely for my flock. They originally ONLY used 2 of the boxes, but since we have a broody hen right now, they lay in the other 2. So on average, they only use 2 or 3 boxes per 14 chickens and 13 hensAs both @JacinLarkwell and @cherrynberry have stated above, you have enough nesting boxes as is. The "thumb rule" is one box per five layers, though like most thumb rules, it varies a bit. There is some advantage to having more than the thumb rule suggests for small flocks.
You can see my flock in my signature, below. Ignore the ducks, they lay on the ground. I have 46 chickens at present. 12 are hatchlings. A couple are roos. a few have not yet begun to lay. Call it 25 layers +/-, I have seven boxes. More often than not, all are empty. On occasion, I'll find a layer "waiting her turn" for a box, while four boxes are empty! And while there tends to be "favorite" boxes for no discernable reason, they will frequently, and just as inscrutably, change "favorites", seemingly at random.