2026 female peregrine falcons with A10

Female Peregrine Falcons With A10: 2026 Identification and Species Guide

 

Female peregrine falcons are among the most distinctive and powerful members of the Falco genus. The scientific name of the species is Falco peregrinus. Females are substantially larger and heavier than males, although the sexes have broadly similar adult plumage.

If “A10” is used to describe an individual female peregrine in a pedigree, breeding, identification, or falconry context, the designation should be explained according to the terminology of the organization or record system using it. It should not automatically be treated as a recognized subspecies or biological classification.

Female Peregrine Falcon Overview

The peregrine falcon is a widespread raptor recognized by its pointed wings, relatively short tail, dark head, pale underparts, and prominent dark facial markings. Adult birds generally have bluish-gray upperparts and barred or spotted underparts.

Female peregrines are normally larger than males. Sources report substantial sexual size differences, with females commonly weighing considerably more than males.

Female Peregrine Falcon Identification

When identifying a female peregrine, several characteristics should be considered together:

 

Larger overall body size than a typical male
Long, pointed wings
Relatively short tail
Blue-gray or slate-colored adult upperparts
Pale underparts with dark barring or markings
Dark head and prominent facial or “moustache” markings
Powerful, streamlined body shape

Size alone is not always sufficient for identification because peregrines can overlap in size with other large falcons. Cornell’s identification guide recommends considering shape, size, plumage, and comparisons with similar species.

All About Birds

What Does A10 Mean?

“A10” should not be presented as a universal scientific term for female peregrine falcons without documentation.

If A10 is a pedigree, breeding, identification, registry, or falconry designation, the meaning may depend on the particular record system. For accurate SEO content, explain the source and definition of the designation rather than suggesting that A10 represents a recognized biological type.

This distinction is particularly important because Falco peregrinus includes geographically variable populations and subspecies, while individual identification codes are separate from scientific taxonomy.

Size and Physical Characteristics

Female peregrines are noticeably larger than males. The U.S. Forest Service reports female lengths of approximately 45–58 cm in North American peregrines and describes females as generally 15–20% larger and substantially heavier than males.

US Forest Service R&D

The exact size and coloration can vary geographically. Age also matters: juveniles typically have browner upperparts and more heavily streaked underparts, while adults develop the characteristic blue-gray and barred appearance.

Habitat and Distribution

Peregrine falcons occupy a remarkably broad range of habitats. Traditional nesting locations include cliffs, rocky crags, and quarries, while some populations have adapted successfully to urban structures such as tall buildings and cathedrals.

Habitat preferences vary between populations. When identifying an individual bird, geographic location and habitat can therefore provide useful supporting evidence alongside physical characteristics.

Behavior and Flight

Peregrines are agile aerial predators with powerful, pointed wings. Their characteristic flight profile can be particularly useful for identification.

They may hunt birds in flight and use speed, maneuverability, and controlled dives to pursue prey. Differences in body size between males and females can also influence prey-handling capabilities and hunting roles.

Diet

Peregrines primarily prey on other birds, although the precise prey composition varies according to location and availability. Urban populations can take advantage of abundant city-dwelling birds, while populations in other habitats exploit locally available prey.

Conservation Status in 2026

Peregrine populations experienced severe historical declines associated with persecution and pesticide poisoning. Many populations subsequently recovered following conservation measures and restrictions on harmful pesticides. In the UK, the RSPB currently lists the Peregrine on its Green List.

RSPB

Current conservation conditions are not identical everywhere. Recent research has also highlighted substantial geographic gaps in knowledge about peregrine populations, so conservation status should be considered at both global and regional levels.

ZSL Publications

Legal Considerations

Peregrine falcons are protected wildlife in many jurisdictions. Rules concerning possession, handling, breeding, transport, trapping, and other activities can differ substantially by country and region.

Anyone researching a particular bird or designation such as A10 should verify the applicable requirements with the relevant wildlife authority and any applicable falconry or registration organization.

Frequently Asked Questions
What is a female peregrine falcon?

A female peregrine is the female of the species Falco peregrinus. Females are generally larger and heavier than males while sharing the species’ characteristic adult plumage.

U.S. Fish and Wildlife Service

Are female peregrine falcons bigger than males?

Yes. Female peregrines are substantially larger than males, although the precise difference varies between populations and subspecies.

US Forest Service R&D

What does A10 mean for a peregrine falcon?

A10 does not appear to be a universal scientific designation for female peregrines. Its meaning should be established from the specific registry, pedigree, breeding record, or falconry system where the term is used.

How can you identify a female peregrine?

Look at multiple characteristics, including overall size, wing shape, tail shape, facial markings, plumage, geographic location, and behavior. Female size can be useful but should not be the only identification feature.

All About Birds

What is the scientific name of the peregrine falcon?

The scientific name is Falco peregrinus.

U.S. Fish and Wildlife Service

Are peregrine falcons protected?

Protection depends on jurisdiction, but peregrines are subject to wildlife protections in many regions. Specific rules should always be checked with the appropriate local authority.