The Only Seed Guide You Need: What to Buy, What to Skip

Eight foods, every species, no filler

The seed aisle works hard to look complicated — gourmet blends, regional mixes, bags with more adjectives than ingredients. The truth underneath is compact: eight foods cover essentially every backyard feeder species, each one maps to a specific audience, and the bargain mixed bag is the one product on the shelf that does every job badly. This is the master guide; each food links to its full entry at /seed.

The master table

Food	Audience	Feeder	Entry
Black-oil sunflower	Nearly everyone	Any	/seed/black-oil-sunflower
Nyjer	Goldfinches, siskins	Special tube	/seed/nyjer
Safflower	Cardinals; squirrels mostly decline	Hopper/platform	/seed/safflower
Suet	Woodpeckers, nuthatches, winter crowd	Cage	/seed/suet
Dried mealworms	Bluebirds, wrens	Dish/platform	/seed/mealworms-dried
Nectar (4:1)	Hummingbirds	Saucer feeder	/seed/nectar-sugar-water
Oranges & jelly	Orioles	Fruit feeder	/seed/orange-halves-grape-jelly
White millet	Juncos, doves, sparrows	Ground/platform	/seed/white-millet

Start with the first row — a 20-pound bag of black-oil sunflower is the entire foundation, per the starter setup — and add rows only when you're targeting their audience, per the species table.

The filler trap: why the cheap mix disappoints

Flip the bargain "wild bird blend" bag over and read the first ingredients: typically milo (sorghum — the round reddish BBs), cracked corn, and red millet. Milo is cheap bulk that most feeder birds in most of the country simply kick to the ground while digging for the sparse sunflower underneath. The result is the classic mixed-bag experience: a feeder that empties fast (onto the ground), a mess below that mostly feeds rodents at night, and the conclusion that "birds don't like my feeder" — when they merely don't like the padding.

The arithmetic makes it worse, not better: a cheap mix that's heavily filler delivers less eaten food per dollar than straight sunflower at a higher shelf price. Buy the single-ingredient bags and blend deliberately if you want a blend — sunflower as the base, millet for the ground crowd, safflower where squirrels rule. You'll know exactly what you're paying for, which is the entire trick of the seed aisle.

Buying and storage rules

Four rules keep seed worth eating. Buy fresh, sized to consumption: seed is a crop, not a shelf-stable powder — a bag that lasts longer than a season has gone stale before it's gone. Store sealed and cool: a lidded bin (metal defeats the inevitable mice) in a garage or shed; heat goes rancid, moisture goes moldy. Smell before refilling: musty, clumped, or webby seed gets dumped, and the feeder gets a wash — moldy seed actively harms birds, which converts a thrift instinct into a hygiene failure. Match quantity to traffic: especially for ground scatter and platform servings, put out what gets eaten in a day; overnight leftovers feed the wrong wildlife.

Seasonal rhythm, briefly

The same eight foods flex by calendar: suet headlines winter; nectar and oranges are spring-summer programs; mealworms matter most in nesting season (the bluebird playbook); millet earns its place when winter ground flocks — juncos — arrive. Sunflower never rotates out; it's the constant the rest orbits.

FAQ

What's the best all-around bird seed?

Black-oil sunflower, by a wide margin: thin shell, high oil, eaten by nearly every feeder species. If you buy one bag ever, that's the bag — the case is in its full entry.

Is cheap mixed bird seed bad?

The heavily padded ones effectively are: milo and filler get kicked to the ground, so you pay for weight birds don't eat and a mess that feeds rodents. Single-ingredient bags, blended deliberately, beat any bargain mix per dollar eaten.

How long does bird seed stay good?

A season, roughly, stored sealed and cool — buy bags you'll empty within a couple of months. Musty smell, clumping, or webbing means it's done; dump it rather than serve it.

Why do birds throw seed out of my feeder?

They're excavating: digging through filler (the mixed-bag signature) or sorting for preferred pieces. Straight black-oil sunflower nearly eliminates it — there's nothing to dig past.