Sorry I tried downsizing these
I recycled old fence pickets, an old door, rails off a wagon, old screen, leftover shingles, fencing and posts, Restore window, two oven racks for secure windows, etc. The nest box got wet so I fitted a piece of siding for the lid, hammered U fasteners to chain shut. I had all hardware and screws; it’s anchored into the shed roof. The only things bought were 2 rolls of hardware cloth and the tarp (hubby hadn’t shingled yet). I made the paint color. I’ve redone their perch 3 times, dry wood broke and the angles had to be adjusted. Note that they do NOT use the inside ramp/steps I worked so hard to install— they just hop or fly from the floor. Silly birds
I installed a 2nd temporary run with tossed seed or weeds they scratch in. That’s it.