3D-Printed Birdhouse, "bird" House

In 2011, my daughter and I built a rather large 4-family wooden birdhouse for the Lexington, KY Arboretum's Birdhouse Display and Benefit Auction. We didn't want to sell it, so we put up an Instructable ( http://www.instructables.com/id/How-to-make-the-bird-house/ ) detailing how to build one yourself. Now, we've made it much easier... although this 1/2-scale structure houses just one family.

Features? Sized for various small bird species, removable roof for cleaning, printed with 5-10% fill provides air gap thermal barrier, angled vent & floor drain slots, internal "ladder" to ease bird egress, darn cute design. ;-)