Steller's Jay: the peanut budget for a bird that runs your feeder

The short answer

• Peanuts in and out of the shell and striped sunflower are the three top-tier foods for this species, and peanuts are the only one that will pull a jay in from a distance.
• Serve peanuts as a counted portion at a fixed time, 10 to 15 in shell, rather than leaving them out all day. The jays clear it in minutes and stop working the seed feeders.
• Steller's Jay is a conifer bird. Coastal ranges, the Rockies and mountain forest from Alaska to Mexico. In lowland California and Oregon valleys you will get scrub-jays instead.
• They cache constantly. Most of what leaves your feeder is buried, not eaten, so consumption looks far higher than the birds' actual appetite.
• Feed on a flat surface: platform tray, ground tray or a wire peanut feeder. A 100 g jay cannot use a tube and will hang off it destructively while trying.

If you live where conifers meet a yard anywhere from southeast Alaska to the mountains of Mexico, Steller's Jay is not a bird you attract. It is a bird that finds you, usually within a week of the first peanut, and then organizes the rest of your feeding station around itself. The useful question is not how to get one, it is how to feed one on your terms.

Identification, and the jays it shares ground with#

A big, deep blue bird with a sooty black head and a tall pointed crest. No white on it anywhere, which is the fastest single check. Interior populations from the Rockies show white or pale blue eyebrow marks over the eye; Pacific coastal birds are darker headed with a longer crest and finer streaking. Both are the same species.

The crest settles nearly every case. If it is blue, crested and dark headed, in the West, it is this bird. A blue jay with no crest in the same country is a scrub-jay.

What happens to your yard when one arrives#

Steller's Jays are loud, watchful and socially dominant, and their behavior at a feeder follows a predictable script.

Approach. They rarely drop straight in. A jay lands high in a conifer, looks the yard over for ten to thirty seconds, then comes down in one or two stages. Small birds hear the arrival call and scatter before the jay reaches the tray, which is why a station can look deserted and busy in alternating five-minute blocks.

Flock size. Low, and scored that way in our species data. A pair, or two to four birds loosely associating, is normal. Ten at once means a good mast year or a mountain campground, not a typical yard.

Caching. Relentless. A jay takes a peanut, flies off, buries it, and is back in under a minute. This is why "they ate a pound of peanuts" is almost never true. Most of it is in the soil, in moss, under bark and in your gutters. Sunflower and peanut sprouts in odd corners of the garden next spring are the receipt.

Dominance. At 100 g they outweigh nearly everything else at a western feeder and they behave accordingly. Chickadees, juncos, nuthatches and finches all wait. They will displace flickers and usually lose only to crows, ravens and squirrels that are actually on the feeder at the time.

Time of day. First light is the peak, by a wide margin. A second, weaker session comes late afternoon. If you want the jays fed and gone before the rest of the yard gets going, that first-hour window is your lever.

The peanut budget#

1. Striped Top
2. Peanuts (shelled) Top
3. Peanuts (in shell) Top
4. Black oil Yes
5. Hearts Yes
6. Cracked corn Yes
7. Suet Yes

Peanuts in and out of the shell and striped sunflower are the top three. Cracked corn and suet are both taken readily and are useful as decoys. Nyjer is worthless to them, which is exactly why a nyjer feeder is jay-proof by design.

The routine that works better than any feeder purchase:

1. Count out 10 to 15 in-shell peanuts into a tray or onto a flat rock, sited 20 ft or more from the main seed feeders.
2. Do it at the same time every morning, ideally within twenty minutes of first light.
3. Do not top it up. When the portion is gone, it is gone until tomorrow.
4. Watch the seed feeders for a week. In most yards, jay pressure on the sunflower drops sharply once the peanut ration is predictable.

That is roughly 1 oz of in-shell peanuts a day, which is affordable and keeps a bird that would otherwise work every feeder in the yard busy for a few minutes and then satisfied. Sourcing and safety rules, including why salted and seasoned nuts are never acceptable, are in peanuts for birds.

For a slower, tidier option, a wire peanut feeder makes a jay work at shelled peanuts a few at a time instead of carrying off a whole handful. A platform tray or a low ground tray covers everything else they eat, including striped sunflower, which their bill opens easily and House Sparrows mostly cannot.

Up the mountain and back down#

Steller's Jays do not migrate, they move vertically. Breeding is in mountain conifer forest, often between roughly 3,000 and 10,000 ft in the interior, and much lower in the coastal Northwest where that forest reaches the sea.

• October to April: downslope movement. Foothill and valley yards in Colorado, Utah, Arizona and interior California get jays now and often not in summer.
• May to July: breeding, and a striking behavioral change. Jays that shout all winter become quiet and secretive near their own nests, and many people assume they have left.
• August to September: family groups appear, with begging juveniles that look like dull, short crested adults. Peanut consumption peaks here.
• Year-round: coastal Pacific Northwest, from northern California to southeast Alaska.

If you are in the mountain West, one seasonal rule overrides all of this. Bears come out of hibernation in spring and a peanut tray is a strong attractant. Take feeders down for the season where local guidance says so, and read bears at feeders before you set anything up. Squirrels and chipmunks are the smaller version of the same problem; see baffles and poles.

No jays at all: the short diagnosis#

• No conifers within sight. This is the main cause in lowland California, the Central Valley, the Willamette floor and the Southwest deserts. That habitat holds California Scrub-Jays instead, and no feeder changes it.
• Wrong side of the continent. East of the Rockies, the crested blue jay in your yard is the other species in the table above.
• Nothing big enough to eat. A yard with only a nyjer feeder and a small-port tube offers a jay nothing. Add peanuts or a tray.
• All food is enclosed. Caged and weight-activated feeders exclude them by design. If everything you own is jay-proof, you have succeeded.
• Seasonal absence at low elevation. In May and June, in the foothills, they are simply uphill nesting. Try again in October.

Give it two weeks. A yard within a jay's range that starts putting out peanuts at dawn is usually found inside seven days, and once found it stays on the circuit for years.

Frequently asked questions#

What is the best food for Steller's Jays?

Peanuts. Both shelled and in-shell peanuts sit at the top of their preference list alongside striped sunflower, and peanuts are the food that will bring a jay across a yard it has never visited. In-shell peanuts are the better choice for a jay specifically: they take longer to handle, they are too big for House Sparrows and finches, and the jay carries them off whole. Cracked corn and suet are both eaten readily and are cheaper ways to keep a jay busy away from your seed feeders.

How do I stop Steller's Jays taking all the food?

Do not try to exclude them, redirect them. Put a counted portion of 10 to 15 in-shell peanuts on a tray away from the main feeders at a fixed time each morning. The jays learn the schedule within a week, take the portion in a few minutes, and largely leave the seed feeders alone for the rest of the day. If you also want a jay-free feeder, a caged tube with mesh under about 1.5 in gives small birds a space a 100 g jay cannot enter.

Is a Steller's Jay the same as a Blue Jay?

No. They are separate species in the same genus, and their ranges barely overlap. Steller's Jay is a western and mountain bird: sooty black head with a tall dark crest, deep blue body, no white anywhere. Blue Jay is an eastern and midwestern bird: pale blue and white with a black necklace and white wing markings. Where they meet on the eastern edge of the Rockies both can appear in one yard and hybrids are occasionally recorded, but for almost every yard only one of the two is possible.

Do Steller's Jays cache food?

Constantly. A jay taking peanuts is usually not eating them, it is burying them in soil, moss, bark crevices and gutters, retrieving them over the following weeks. That is why a bowl of peanuts can vanish in ten minutes with no bird having eaten more than one. It also means uneaten caches sprout: sunflower seedlings appearing in your lawn and flowerpots in spring are often jay work. Caching is also why they arrive in a rush, work fast, and leave.

Why do Steller's Jays only visit some times of year?

Elevation, mostly. They breed high in mountain conifer forest and many birds move downslope in autumn, so foothill and valley yards get their jays from roughly October to April and lose them in May when the birds go back up to nest. Coastal Pacific Northwest yards, where conifer forest reaches sea level, have them year-round. A quiet spell in June is nesting, not departure: jays go noticeably silent and secretive around their own nests.

Are Steller's Jays bad for other birds?

They dominate feeders and they do take eggs and nestlings, but a well-arranged yard absorbs both. Spread feeding stations out so one jay cannot control everything, keep a caged or small-perch feeder for chickadees and finches, and provide dense native shrub cover so nesting songbirds are not exposed. Removing jays is neither practical nor legal; managing the layout of your yard is both.

Sources and further reading

1. Steller's Jay Cornell Lab of Ornithology, All About Birds Range, habitat, elevational movement and diet
2. Common Feeder Birds Cornell Lab of Ornithology, Project FeederWatch Feeder types and foods used by jays
3. Bird Feeding and Care National Audubon Society Feeder placement and habitat guidance