Apartment Therapy has a great piece on really creative birdhouses auctioned off for a good cause--affordable housing in Los Angeles. (for people, not just birds)

Here's a pull quote:

"Birdhouses for the Birdhouse Auction, an event hosted by Princeton Community Housing, invited architects, artists and other creatives to fashion their own vision of the common birdhouse. With 124 different built from the likes of architects Michael Graves [top] and the Princeton Design Guild/Wilkes Architect [bottom left], the results were anything but common."