What Kind of Bird Food Do Cardinals Like? | The Menu That Works Every Time

Northern cardinals prefer black oil sunflower seeds above all other foods, making them the single best option for attracting these brilliant red birds to your yard.

A feeder full of the wrong seed means watching cardinals fly past your station. The difference between an empty perch and daily visits comes down to one choice: black oil sunflower seeds in an open hopper or platform feeder. These birds eat about 75% plant material outside breeding season, but their preferences are surprisingly specific. The right seed mix, feeder style, and feeder placement turn your yard into cardinal headquarters within days. Here is exactly what to put out and how to present it.

The Seeds Cardinals Prefer Most

Black oil sunflower seeds are the undisputed champion. Their thin shells are easy for cardinals to crack, and the high oil content delivers the energy these birds need, especially in winter. Striped sunflower seeds rank second because cardinals will eat them, but the thicker shells require more effort. Safflower seeds are a smart addition: cardinals love them, while squirrels and blackbirds typically leave them alone, making your feeder effectively self-selecting. Sunflower chips (shelled kernels) are attractive because cardinals can eat them without any cracking effort at all, though they spoil faster in wet weather. For a comprehensive breakdown of the best commercial blends and top-performing seed mixes, check out our tested guide to the best bird food for cardinals.

Nuts, Berries, and Other Foods They Will Eat

Unsalted, shelled peanuts are a high-protein, high-fat treat cardinals love, but you must buy them already shelled—cardinals cannot crack open peanuts still in the shell. Berries from native shrubs like dogwood, serviceberry, red mulberry, elderberry, and wild grape are natural favorites when available. Suet blocks are excellent in cold months, providing dense energy when insects are scarce. During summer breeding, cardinals switch their priority to insects, which become the primary food for hatchlings, so offering dried mealworms during this period supports nesting success. Avoid salted or human-grade peanuts, which can harm birds.

Feeder Setup and Placement That Actually Works

Cardinals are not perching birds that cling to small tubes. They need an open space to land and eat. A pole-mounted hopper feeder with a perch, or a simple platform feeder, is ideal. Tubular feeders with small ports are largely useless for cardinals. A tray or mesh basket placed beneath the main feeder catches fallen seeds, which cardinals happily eat from the ground—they naturally feed there. Situate feeders near trees or dense shrubs for protective cover, but keep them away from low bushes where predators could ambush. Place feeders where you can see them from a window, and check them early morning and late evening; cardinals are famously late diners and may eat after dark.

Water is just as important as food. A birdbath two to three inches deep at its deepest point works well. In winter, a heated birdbath prevents freezing. Cardinals prefer drinking and bathing from ground-level water sources, so a low basin or a dripper near the feeding area appeals to them. Change the water regularly to prevent disease spread.

Mistakes That Keep Cardinals Away

The most common error is using a tubular feeder. Cardinals simply will not use them. Another frequent problem is placing feeders in the middle of an open yard where birds feel exposed to hawks. Shell-on peanuts are wasted money—cardinals cannot open them. Wet cracked corn is dangerous; moisture promotes fungal growth that produces toxins lethal to birds. Avoid using pesticides or herbicides anywhere near feeding stations. If squirrels are raiding your seed, mix in safflower seeds, which cardinals love but most squirrels reject. Keep cats indoors or away from feeding areas; a single predator can empty your yard of cardinals for weeks.