Seed Cylinders are a fast, easy, less mess way to feed your birds. They are suitable for both clinging birds and perching birds. They are less messy than traditional feeders because the birds have to work at getting each seed pulled out from the seed block. The birds aren't as likely to grab seed and fly away to eat it. They sit in the same place longer so you can get a better look at them and it takes significantly longer for the birds to eat through the seed. The weatherguard will protect your seed cylinder from rain. It also protects the birds as they eat. Seed cylinder is not included.