How to identify a peregrine falcon

Peregrine identification: shape, adult and juvenile plumage, and comparisons with kestrel, hobby and sparrowhawk.

Start with shape

Look for a strong-bodied falcon with pointed wings and a relatively short tail. Adults have grey upperparts, a dark head and a broad dark facial mark beside a pale cheek. Young birds are browner, with streaks rather than adult barring below. Compare the photographs in the RSPB peregrine guide.

Do not decide from one feature. Wing posture changes in flight and backlighting can hide colour. A perched bird gives you more time to compare the face, chest and proportions.

Peregrine or kestrel?

A kestrel often draws attention by hovering; look for its longer-tailed outline and warmer brown upperparts. Hovering is a clue, not a complete identification. Compare the RSPB kestrel photographs with your observation.

Peregrine or hobby?

A hobby has a slimmer, long-winged appearance. An adult's reddish undertail area is helpful when visible, but young birds lack that obvious clue. Compare the RSPB hobby photographs. The BTO hobby and kestrel video is useful practice for recognising smaller falcons.

Peregrine or sparrowhawk?

A sparrowhawk's rounded wings and longer tail differ from a falcon's pointed-wing outline. A brief view through trees may not show either clearly. Use the RSPB sparrowhawk guide to compare photographs rather than relying on perceived size.

Record what you actually saw

Write down the date, place, wing shape, tail length, behaviour and any clear markings. A distant silhouette may remain unidentified. Keep a photograph if you already have one, but do not approach a nest or chase a bird to obtain it.

Take the printable cheat sheet on your next watch, or read the species facts for background.

Sources checked 31 October 2026. Follow linked operators for current arrangements.