If you still drink two-liter soda bottles, feel the need to recycle them and want to help out some hungry feathered friends, you should get a Soda Bottle Bird Feeder Kit ($15). This cool eco-friendly kit lets you create a unique bird feeder from a 2-liter plastic soda bottle. Simply provide and fill a bottle with bird seed, attach the included durable cast zinc feeder adapter nozzle and hanging wire to the bottle and hang it up or mount it on a pole. A great gift for bird lovers and it keeps one more pesky plastic bottle out of a landfill. (via The Green Head)

Designed in 1984, this cast zinc bird feeder adapter lets you turn any 2 liter soda bottle into a squirrel-proof bird feeder.
Great idea. (via Design Within Reach)

An eco-friendly way to help out the birds in your neighborhood. You can recycle a 2-liter bottle and make a bird feeder. Durable cast zinc adapter can be hung or mounted on a pole or branch. Made in the USA. Set includes feeder nozzle and hanging wire. (I wonder if this is effectively..."squirrel-proof"). (via UncommonGoods)

I love this kit. I have always wanted a bird feeder and I think I'll just have to get one now. Recycle a 2L soda bottle with this $15.00 kit and turn it into a bird feeder that refills the dishes on its own! (until the seed runs out, of course). It's eco-friendly and fun. And a great activity to do with your kids to teach them about recycling and birds.