American Kestrel vs Peregrine Falcon
How does the American Kestrel compare to the Peregrine Falcon? They are both members of the Falconidae family. Below we put their classification, habitat, diet, size, and conservation status side by side — and settle who would win in a fight.


Side-by-side comparison
- Scientific name
- Falco sparverius
- Falco peregrinus
- Classification
- Bird
- Bird
- Family
- Falconidae
- Falconidae
- Habitat
- Open woodlands, grasslands, agricultural fields, deserts, and urban areas
- Cliffs, mountains, open landscapes, and urban environments
- Diet
- Carnivore
- Carnivore
- Conservation status
- Least Concern
- Least Concern
- Lifespan
- 3-6 years in the wild
- 13-17 years
- Weight
- 80-165 g
- 0.6–1.5 kg
American Kestrel vs Peregrine Falcon: who would win?

American Kestrel
80-165 g

Peregrine Falcon
0.6–1.5 kg
Peregrine Falcon wins high confidence
Peregrine Falcon is substantially heavier (0.6–1.5 kg vs 80-165 g). In a physical confrontation that size and power advantage is usually decisive. In the wild these two rarely (if ever) meet — this is a what-if based on the size and diet we have on record, not a prediction.
Similarities
- Both are birds.
- Both belong to the Falconidae family.
- Both have a carnivore diet.
- Both are listed as Least Concern.
Differences
- Habitat: Open woodlands, grasslands, agricultural fields, deserts, and urban areas vs Cliffs, mountains, open landscapes, and urban environments.
- Weight: 80-165 g vs 0.6–1.5 kg.
American Kestrel vs Peregrine Falcon: FAQ
Who would win in a fight, a American Kestrel or a Peregrine Falcon?
Peregrine Falcon wins. Peregrine Falcon is substantially heavier (0.6–1.5 kg vs 80-165 g). In a physical confrontation that size and power advantage is usually decisive. In the wild these two rarely (if ever) meet — this is a what-if based on the size and diet we have on record, not a prediction.
What is the difference between a American Kestrel and a Peregrine Falcon?
American Kestrel and Peregrine Falcon differ in several ways — habitat: open woodlands, grasslands, agricultural fields, deserts, and urban areas vs cliffs, mountains, open landscapes, and urban environments. weight: 80-165 g vs 0.6–1.5 kg.
Do American Kestrel and Peregrine Falcon live in the same habitat?
No — American Kestrel lives in open woodlands, grasslands, agricultural fields, deserts, and urban areas, while Peregrine Falcon is found in cliffs, mountains, open landscapes, and urban environments.
What do American Kestrel and Peregrine Falcon eat?
Both American Kestrel and Peregrine Falcon have a carnivore diet.
Which is more endangered, the American Kestrel or the Peregrine Falcon?
American Kestrel is listed as Least Concern, while Peregrine Falcon is listed as Least Concern.
How big are American Kestrel and Peregrine Falcon?
American Kestrel weighs around 80-165 g, while Peregrine Falcon weighs around 0.6–1.5 kg.

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American Kestrel

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Peregrine Falcon



