Backyard Bird Feeding - Birds - Cornell Lab of Ornithology

Tube FeedersAcorn Woodpeckers by Judith MatthewPainted Bunting by Wanda JohnsonA tube feeder is a hollow cylinder, often made of plastic and metal, withmultiple feeding ports and perches. Tube feeders keep seed fairly dry, andthey are often somewhat squirrel resistant.The species of birds attracted to a tube feeder depends on the size of theperches under the feeding ports: short perches accommodate small birdssuch as finches, but exclude larger birds such as grackles and jays.10