Alyson Shotz is an American artist based in Brooklyn, New York. Her art investigates issues of perception and space. I believe these photos are from a 2003 installation and commission for Socrates Sculpture Park. And to all you haters out there – relax, no birds were harmed with this installation (that appears to be the most posted topic).
UPDATE: In response to those wondering what a mirrored house would look like, I thought I would add this link. The Treehotel opened in 2010, 40 miles south of the Arctic Circle in Sweden. This is one of the seven rooms available. And again for bird lovers; the mirrored walls have been clad with infrared film. Apparently the colour is invisible to humans, but visible to the birds.