Please note: This cage is only compatible with our 5 port Apollo Seed Feeder (not included). You can order the feeder separately, simply search code 31096. Bird feeding is fun! However when smaller birds such as robins and blue tits are being chased away by uninvited guests it becomes less enjoyable. To ensure that larger birds and squirrels can\'t get to feeders we have developed feeder cages called guardians. The Apollo Guardian Cage for 5 port seed feeder has been designed as the name suggests to fit our 5 port Apollo Seed Feeder. This guardian should prevent larger birds and squirrels from pilfering the food.