Number one nest box, accessible from the hallway, has 3 separate boxes on the inside, and a "landing" roost in front of them.
Fully removable, because just like everything else the pen has double use, when used for growing out youngsters, the box is taken out.
Nice part, when it's taken out, gets scrubbed and left out in the sun, using hight UV as sanitation
With nest box removed and opening blocked by section of an old dog crate, used as a grow out pen
And these are my awesome boxes I got for Christmas, saw them in a magazine advert, showed to DH and he put them together out of odds and ends laying around.
To facilitate cleaning, there is no back wall and the whole thing hangs on one shelf support, so can be lifted out and you know... more UV :)