---
title: "Mallard vs peregrine falcon — size, weight and speed compared"
description: "Mallard is somewhat greater than peregrine falcon on weight — about 1.2×. Compared on 5 measured properties, with the full range and a source for each."
url: https://atoneplace.net/vs/mallard-vs-peregrine-falcon/
site: "At One Place"
---

# Mallard vs Peregrine falcon

**Mallard vs peregrine falcon: Mallard is larger on weight**

Mallard is somewhat greater than peregrine falcon on weight — about 1.2×.

A mallard and a peregrine falcon can be compared on 5 measures. The figures below are typical adult or full-size values, with the larger of the two in bold.

## Side by side

*Larger value in bold. Ranges reflect genuine variation, not uncertainty.*

|  | Mallard | Peregrine falcon |
| --- | --- | --- |
| Weight | 0.7–1.6 kg | 0.33–1.5 kg |
| Length | 0.5–0.65 m | 0.34–0.58 m |
| Width | 0.81–0.98 m | 0.74–1.2 m |
| Top speed | 88 km/h | 90–390 km/h |
| Typical lifespan | 3–29 yr | 8–19 yr |

## What the numbers say

- Mallard is somewhat greater than peregrine falcon on weight — about 1.2×.
- Mallard is somewhat greater than peregrine falcon on length — about 1.3×.
- Peregrine falcon is somewhat greater than mallard on width — about 1.2×.
- Peregrine falcon is 3.6× mallard on top speed.
- Peregrine falcon is 2.6× mallard on typical lifespan.

*Weight compared.*

- Mallard: 0.7–1.6 kg
- Peregrine falcon: 0.33–1.5 kg

## Mallard

The most common wild duck in the Northern Hemisphere and the ancestor of nearly all domestic ducks.

## Peregrine falcon

The fastest animal on Earth, reaching over 320 km/h in a hunting stoop.

> This is a comparison of published measurements, nothing more. It describes how two things differ on measures that have been recorded; it does not predict how they would fare against each other in any situation.

## Common questions

### Which is bigger, mallard or peregrine falcon?

Mallard is somewhat greater than peregrine falcon on weight — about 1.2×. Both figures are typical values; the full range for each is in the table above.

### How do mallards and peregrine falcons compare on length?

Mallard: 0.5–0.65 m. Peregrine falcon: 0.34–0.58 m. Mallard is somewhat greater than peregrine falcon on length — about 1.3×.

### How do mallards and peregrine falcons compare on width?

Mallard: 0.81–0.98 m. Peregrine falcon: 0.74–1.2 m. Peregrine falcon is somewhat greater than mallard on width — about 1.2×.

## Related pages

- [Great horned owl vs peregrine falcon](https://atoneplace.net/vs/great-horned-owl-vs-peregrine-falcon/)
- [Great horned owl vs mallard](https://atoneplace.net/vs/great-horned-owl-vs-mallard/)
- [Black mamba vs peregrine falcon](https://atoneplace.net/vs/black-mamba-vs-peregrine-falcon/)
- [Black mamba vs mallard](https://atoneplace.net/vs/black-mamba-vs-mallard/)

## Sources

- Wikidata — Wikimedia Foundation (https://www.wikidata.org/) [CC0 1.0]
- Smithsonian National Museum of Natural History — Smithsonian Institution (https://naturalhistory.si.edu/)