Even if ornithology isn’t your thing, it’s hard not to be lured by colorful fluttering outside a window.

Outdoor birds can provide hours of watch-time (for both you and your cat) so why not provide them with digs that are just as green as your own? Check out this birdhouse from Doctors Foster and Smith, which is made of 100 percent recycled milk jugs and is suitable for any small bird to nest in. Particularly perfect for wrens and chickadees, the roof can be opened for cleaning and the house comes with a wire hanger to dangle from branches.

The recycled birdhouse retails for $19.99. Certainly less expensive than investing in the indoor alternative and guaranteed to be better for all!