Duck vs Goose Down

On this page
  1. Side-by-side comparison
  2. Why fill power matters more than species
  3. Cluster size and fill power ceiling
  4. Odor
  5. Price
  6. Ethics and certification
  7. Down vs feathers: check the ratio
  8. How to read a down spec sheet
  9. Worked example: duck vs goose on the same quilt
  10. Model examples
  11. Recommendations by hiker
  12. Common mistakes
  13. Hammock vs ground: does species matter?
  14. Does species affect care?
  15. Water resistance
  16. Verdict
  17. FAQ

Quick answer: At the same fill power, duck and goose down keep you equally warm for the same weight. Goose down is more available at the highest fill powers (900–950) and has larger clusters, while duck down is usually cheaper. For a quilt, compare fill power, fill weight and treatment — not species. 850 FP duck down is an excellent value.

Duck vs goose down sounds like an important choice, and marketing often treats "goose down" as a premium label on its own. In reality, for quilts, species is a minor factor. What determines warmth and weight is fill power (loft per ounce) and fill weight (how many ounces are in the quilt). Here's what genuinely differs between the two.

Side-by-side comparison

FactorDuck downGoose down
Warmth at same fill powerSameSame
Common fill power rangeAbout 550–850About 600–950+
Cluster sizeGenerally smallerGenerally larger
Availability at 900+ FPLimitedReadily available
Odor riskSlightly higher if poorly cleanedLower
Price at same fill powerLowerHigher
Ethical certification availableYes (e.g. RDS)Yes (e.g. RDS)
Typical use in quiltsBudget and value 800–850 FP quiltsPremium 900–950 FP quilts

Why fill power matters more than species

Fill power measures how many cubic inches one ounce of down fills under standard conditions. A quilt designed to a target loft needs a certain volume of down; the ounces required depend only on fill power. So 850 FP duck and 850 FP goose put the same weight of down in a quilt for the same warmth. See down fill power explained and the fill power comparison for worked examples.

Cluster size and fill power ceiling

Geese are larger birds than ducks and are often raised to maturity longer, which tends to produce larger, more resilient down clusters. Larger clusters trap more air per ounce, which is why the very highest fill powers (900–950 and above) are mostly goose. Duck down tops out lower in common commercial supply, with 800–850 widely available from good suppliers.

Some sources argue that larger goose clusters may retain loft slightly better over many years. The evidence is limited, and storage, washing and use habits have a far bigger effect on longevity. See how to store a quilt and restore quilt loft.

Odor

Duck down has a reputation for smelling, which comes from residual oils when down isn't cleaned well. Quality down from reputable suppliers is washed thoroughly, and odor problems are uncommon in quilts from established makers. If a new quilt smells faintly when damp, airing and a proper wash usually solve it; see how to wash a down quilt.

Price

Duck down typically costs less than goose at the same fill power, which is why cottage makers often offer 800–850 FP duck down as their standard option and 900–950 FP goose as an upgrade. Hammock Gear, for example, has long offered both duck and goose options; check current options with the maker. For value-focused buyers, high-quality duck down is often the best use of money. See best budget top quilts.

Ethics and certification

Both duck and goose down are by-products of the meat industry, and both can come from farms with poor welfare practices. Look for certifications such as the Responsible Down Standard (RDS), which prohibits live-plucking and force-feeding and tracks down through the supply chain. Species doesn't change this; certification does. See responsible down standard.

Down vs feathers: check the ratio

Down products are a blend of down clusters and small feathers. The ratio is often stated as something like 90/10 or 95/5 (percent down to feather). Feathers are heavier, flatter and don't loft, so a higher down percentage generally means better performance. High fill power down usually comes with a high cluster ratio anyway, but on budget quilts it's worth checking. A product labeled "goose down" with a low down ratio can underperform a quality duck down with a high one.

How to read a down spec sheet

When comparing quilts, look for these items in roughly this order of importance:

  1. Temperature rating and how the maker defines it (see temperature ratings).
  2. Fill weight in ounces — how much down is actually in the quilt.
  3. Fill power — loft per ounce.
  4. Treatment — hydrophobic or untreated.
  5. Certification — RDS or equivalent.
  6. Species and down/feather ratio — useful detail, but last on the list.

Two quilts with the same rating can have very different fill weights; more fill at the same fill power usually means a warmer, more reliable quilt. See fill weight and overfill.

Worked example: duck vs goose on the same quilt

Suppose a 20°F quilt needs about 12,750 cubic inches of loft. Using 850 FP down, that's 15 oz of fill — whether duck or goose. The only way goose saves weight is by going to a fill power duck rarely reaches. At 950 FP goose, the same loft takes about 13.4 oz, saving around 1.6 oz. So the real choice isn't "duck vs goose"; it's "850 FP (often duck) vs 950 FP (usually goose)." If the upgrade costs, say, $80, that's roughly $50 per ounce saved. Prices vary by maker and season, so plug in current numbers. Full math for each step is in the fill power comparison.

Model examples

Several well-known quilts show how the species question plays out:

Makers change their down sourcing over time, so confirm species, fill power and certification on the current product page before buying.

Recommendations by hiker

HikerRecommended downWhy
First quilt, tight budgetDuck, 650–800 FPBiggest savings; weight penalty is modest
Three-season backpackerDuck, 850 FPBest value per ounce of warmth
Thru-hiker counting ounces850 duck or 900+ gooseGoose only if the upgrade cost is acceptable
Winter quilt buyerGoose, 900–950 FPSavings scale with fill weight
Humid-climate hikerEither, treatedTreatment matters more than species

Common mistakes

  • Paying extra for "goose" at a lower fill power than a duck alternative. 700 FP goose is worse than 850 FP duck.
  • Comparing fill power but ignoring fill weight. A quilt with more ounces of slightly lower-fill-power down can be warmer.
  • Assuming goose is automatically ethical or duck is not. Only certification tells you that.

Hammock vs ground: does species matter?

No more than anywhere else. For hammock top quilts and underquilts, the same rule applies: compare fill power and fill weight. One practical note is that underquilts hang in moving air and sometimes collect condensation, so treated down can be worth more than an upgrade from duck to goose. On the ground, the bigger lever is your pad; spending the goose premium on a warmer pad often improves comfort more. See best underquilts and best sleeping pads for quilts.

Does species affect care?

No. Duck and goose down are washed, dried and stored exactly the same way: a down-specific soap, a long low-heat dry with dryer balls, and loose storage in a large breathable sack. Both clump when wet and both recover fully when dried properly. See how to dry a down quilt.

Water resistance

Waterfowl down has natural oils, but neither duck nor goose down is meaningfully water-resistant once processed. Treated (hydrophobic) down is available in both. If moisture is a concern, choose treated down or consider synthetic; see hydrophobic down and down vs synthetic quilts.

Verdict

Choose duck down if…

  • You want the best value at 800–850 fill power.
  • You're buying a three-season quilt where 850 FP is plenty.
  • You'd rather put the savings into overfill, width or a better pad.

Choose goose down if…

  • You want 900–950 fill power for the lightest, most compact quilt.
  • You're building a winter quilt where higher fill power saves the most weight.
  • The price difference is small for the quilt you're considering.

Either way, compare fill power, fill weight and certification first. Browse our best down top quilts or read the full top quilt buying guide.

Frequently asked questions

Is goose down warmer than duck down?

Not at the same fill power. Fill power measures loft per ounce, and loft is what keeps you warm. 850 FP duck and 850 FP goose provide the same warmth for the same weight.

Why is goose down more expensive?

Geese are larger birds and are often raised longer, producing larger clusters, so very high fill powers (900+) are more readily available from goose down. Supply and demand also push goose prices higher.

Does duck down smell?

Poorly cleaned down of any kind can smell, and duck down has a reputation for it. Quality down from reputable suppliers is thoroughly washed, so odor is uncommon. A faint smell when damp usually fades as the quilt dries.

Is 850 duck down good?

Yes. 850 fill power duck down is used by several respected cottage quilt makers and performs like 850 goose. It's a good way to get high fill power at a lower price.