Duncraft Super Cling-A-Wing Globe Feeder - For Small Songbirds Only When big birds dominate your platforms and tube feeders, small songbirds can feed here. Only certain birds have the ability to cling to the four perchless seed holes - like chickadees, nuthatches, titmice and goldfinches. Endorsed by National Audubon Society. Use with Black-oil sunflower seed only -- holds 6 lbs. Type: Feeders Bird Species: Bird Location: Outdoor