Nobody likes to have their food swiped， and that also goes for your feathered friends. Squirrels tend to want a taste， as well， so help prevent that with this squirrel defense feeder. This feeder features a spring-loaded， push-button cap that allows for easy filling of delicious treats， ideally with larger sized mixed seed or sunflower seed. Small seed is not recommended. If any squirrel hops on to help himself， the integrated spring loader will cause their weight to slide a cage down， blocking the port doors from access. Not only is this feeder cage great against squirrelly thieves， but it has four ports in total， each with its own perch to attract as many birds as possible. Keep your feathered friends happy by keeping their tasty snacks safe from unwanted guests.