Black-Oil Sunflower to Nyjer: The Tracker's Seed Guide
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Quick answer
If you buy only one seed, buy black-oil sunflower: it feeds the widest range of backyard birds. Add nyjer for goldfinches, safflower for cardinals with fewer squirrels and grackles, white millet for ground feeders, and suet or peanuts for woodpeckers.
Key takeaways
- Black-oil sunflower attracts more species than any other single seed.
- Safflower is loved by cardinals but far less popular with squirrels, grackles and starlings.
- Nyjer must be fresh and served in a small-port feeder for finches.
- White proso millet feeds juncos, sparrows and doves on platforms or the ground.
- Skip cheap mixes heavy in milo and red filler that most eastern feeder birds toss aside.
Two feeders on the same street can host completely different birds, and nine times out of ten the reason is the seed. Birds are specialists. A finch's fine bill, a cardinal's nutcracker beak and a junco's habit of feeding on the ground all point to different foods.
Here is how the six foods that really matter compare, and how to serve each one.
The cheat sheet
| Food | Top visitors | Best feeder |
|---|---|---|
| Black-oil sunflower | Chickadees, titmice, nuthatches, cardinals, finches, grosbeaks | Tube, hopper, platform |
| Safflower | Cardinals, chickadees, titmice, House Finches | Hopper or platform |
| Nyjer (thistle) | American Goldfinch, Pine Siskin, redpolls | Small-port tube or mesh |
| White proso millet | Juncos, native sparrows, doves, towhees | Platform or ground |
| Peanuts (unsalted) | Jays, woodpeckers, titmice, nuthatches | Mesh tube or platform |
| Suet | Woodpeckers, nuthatches, chickadees, wrens | Suet cage |
Black-oil sunflower: the all-rounder
If a bird visits feeders, it probably eats black-oil sunflower. The shell is thin enough for small birds to crack, and the kernel is rich in fat, which matters most on cold nights. Striped sunflower has a thicker shell that suits bigger bills like jays and grosbeaks. Sunflower hearts (no shell) cost more but leave no mess under the feeder.
Safflower: the problem solver
Safflower is a slightly bitter, white seed that cardinals love and many unwanted guests do not. Squirrels, grackles, starlings and blackbirds tend to ignore it. Switch gradually by mixing it with sunflower for a week or two, because some birds need time to accept it.
Bully birds clearing out your feeder by noon? Swap to straight safflower for a month. The cardinals stay, the grackle gang moves on.
Nyjer: finch magnet with a short shelf life
Nyjer is a tiny, oil-rich black seed that goldfinches and siskins pull out of narrow ports. It loses its appeal quickly once it dries out, so buy small bags, keep them sealed and dump seed that has clumped after rain. A finch feeder that suddenly goes quiet usually has stale seed.
Millet, peanuts and suet
- White proso millet is the favorite of ground-feeding birds. Scatter a little on a platform low to the ground rather than filling tube feeders with it.
- Peanuts should always be unsalted and unflavored. Serve shelled peanuts in a mesh feeder so birds take small pieces.
- Suet is pure energy for insect eaters in cold months. In summer, use no-melt suet doughs and keep them shaded.
What to skip
Cheap mixes are often padded with milo (round reddish seed), wheat and red-dyed filler. Most eastern feeder birds kick these to the ground, where they attract rodents and sprout weeds. Western ground birds such as quail and some doves do eat milo, so it is not useless everywhere, but read the label and pay for what your birds actually eat.
Build a three-feeder setup
- Main feeder: black-oil sunflower or a sunflower-and-safflower blend in a squirrel-resistant feeder.
- Finch feeder: fresh nyjer in a small-port tube, hung in a quieter spot.
- Low platform: a scatter of millet for juncos and sparrows, plus suet nearby in winter.
Keep seed in a sealed metal can, clean feeders every two weeks, and log who shows up when you change foods. That is how trackers learn their yard.
Frequently asked questions
What bird seed attracts the most birds?
Black-oil sunflower seed. Its thin shell and high fat content make it a favorite of chickadees, titmice, nuthatches, cardinals, finches, grosbeaks and many more.
Do squirrels eat safflower seed?
Most squirrels avoid safflower or eat very little of it, as do grackles and starlings. Cardinals, chickadees and titmice eat it readily, which makes it a good choice for problem feeders.
Why are goldfinches ignoring my nyjer feeder?
Nyjer goes stale quickly and birds can tell. Buy small amounts, store it dry and replace seed that has clumped or been in the feeder more than a few weeks.
How should I store bird seed?
Keep it in a sealed metal container in a cool, dry place. Moisture causes mold and metal stops rodents from chewing in.
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Written by the Bird Trackers Field Team
We test feeders, cameras and optics in real backyards across the seasons, log what shows up, and write down what actually works. Have a correction or a sighting to share? Tell us.
