Duncraft Black Oil Sunflower Wild Bird Seed, 5-lb bag

The seed more birds prefer than any other.

If you could only put one seed in your feeder, black oil sunflower seed would be it. Thin-shelled and packed with high-energy fat and protein, black oil sunflower is the universal favorite — attracting more species of wild birds than any other single seed. Chickadees crack them open in seconds. Cardinals carry them off one by one. Woodpeckers, nuthatches, jays, juncos, and finches all flock to it. Fill your feeder once and watch the action begin.

Why Duncraft Black Oil Sunflower?

Duncraft sources only premium-grade black oil sunflower seed. Carefully processed for top quality, this seed offers excellent value with no filler ingredients. That means less mess under your feeder and more value per pound.

• 100% black oil sunflower seed, no fillers, no waste
• Thin shells make it easy for small birds to crack open
• High in fat and protein — essential energy for year-round feeding
• Attracts the widest variety of backyard birds of any single seed
• Works in hopper, tube, platform, and tray feeders
• 5 lb resealable bag for freshness

Birds attracted: Black-capped Chickadees, Northern Cardinals, Blue Jays, Downy Woodpeckers, Hairy Woodpeckers, White-breasted Nuthatches, House Finches, Purple Finches, American Goldfinches, Dark-eyed Juncos, Song Sparrows, Pine Siskins, and many more.

How to feed: Serve in any hopper, tube, platform, or tray feeder. For the cleanest feeding experience, pair with a no-mess feeder tray to catch any dropped shells. Black oil sunflower shells do accumulate under feeders over time — rake or sweep periodically, or switch to our hulled Sunflower Heart Chips for a completely shell-free option.

Frequently Asked Questions

What is black oil sunflower seed and why do birds love it?
Black oil sunflower seed is a small, thin-shelled sunflower variety with a higher oil content than striped sunflower. The thin shell makes it easy for small birds like chickadees and finches to crack open, while the high fat content provides the concentrated energy birds need — especially during cold weather and migration.

What birds does black oil sunflower seed attract?
Black oil sunflower attracts the widest variety of backyard birds of any single seed, including chickadees, cardinals, blue jays, woodpeckers, nuthatches, finches, juncos, sparrows, and grosbeaks. It is considered the universal bird seed by ornithologists and birding experts.

Can I use black oil sunflower seed year-round?
Yes. Black oil sunflower seed is ideal for year-round feeding. In winter it provides critical high-fat energy for birds staying through cold temperatures. In spring and summer it supports nesting birds and fledglings. It is one of the few seeds that attracts both resident and migratory species in every season.

Will black oil sunflower seed sprout in my lawn?
Dropped shells and uneaten seeds can sprout if they reach soil. To prevent sprouting, use a feeder tray to catch shells, rake under your feeder regularly, or switch to our hulled Sunflower Heart Chips, which are 100% edible and will not sprout.

What feeder should I use for black oil sunflower seed?
Black oil sunflower seed works in virtually any feeder — hopper feeders, tube feeders, platform feeders, and open tray feeders. For the best results attracting the widest variety of birds, a hopper or platform feeder gives birds of all sizes comfortable access. Pair with a squirrel-resistant feeder like the Duncraft Squirrel Proof Selective or the Brome Squirrel Buster Plus to keep squirrels from emptying your feeder.