Wild Birds flock to Mr. Bird's Wild Bird Feast Large Cylinder. Seed cylinders can last up to 5 times longer than loose seed so you have more time enjoying the birds rather than refilling baskets. This 4 lbs. 3 oz. seed cylinder comes with a heavy-duty, powder-coated steel seed block holder. Seed Cylinders (small or large) simply slide over the top and can be hung for better viewing of the birds.