Features The Feeder is calibrated to support the weight of even large birds like cardinals and woodpeckers but is immediately activated by squirrels. With less competition from squirrels, birds wont be able to resist stopping by for a visit! With four feeding ports and a circular perch, multiple birds can dine at the same time, and you can enjoy a better view. Tube bird feeder holds up to five pounds of birdseed and has four feeding ports. The feeders squirrel-proof design ensures less seed waste, which means money saved and fewer messes on the ground. Plus, the large 5 lb seed capacity ensures you wont have to worry about birds emptying your feeder too quickly during peak feeding times. Convenient internal baffles also help to keep seed flowing freely to the ports as birds feed. Bird feeder is constructed of heavy duty metal base and cap. The seed tube is UV-stabilized polycarbonate and wont fade. Cleaning and filling is an effortless process thanks to the feeders convenient design. This feeder features a lift-lid and wide-mouth seed reservoir so you can easily get to every nook and cranny. We recommend cleaning the feeder at least every two weeks and regularly checking the seed to ensure it is of insects and mold. Internal small-caliber is desinged to keep seed flowing freely to all four seed ports and avoid spilling. Seed Recommendations A variety of birds use the Bird Feeder, including cardinals, chickadees, finches, flickers, goldfinches, grackles, grosbeaks, jays, juncos, kinglets, nuthatches, redpolls, siskins, sparrows, starlings, titmice, towhees, woodpeckers, and wrens. The Flipper works with mixed seed, peanut chunks, safflower seed, sunflower kernels, and cracked corn, though it works best with sunflower seeds, a favorite of almost every backyard feeder bird. Package includes