Just in case you needed another re-use for your old glass bottles, this simple DIY bird feeder is made using scrap wood, wire, a hook, the base of a plastic bottle, and an old glass sauce bottle.
Basically you create the wooden support, upend the closed bottle of seed and secure it to the backing, then secure the base tray. When the feeder is secure you can open the bottle and let the seed flow through. As the tray empties more seed should fill it so you don't have to refill every couple of days, just sit back and enjoy the birds.
(Image source: esprit cabane)