Swift vs Swallow vs House Martin: How to Tell Them Apart

Telling the Swift and Swallow and House Martin apart comes down to differences in size, appearance, habitat and voice. Compare them side by side below, or open each species for the full profile.

Swift

Apus apus
Swift
Length16-17cm
Wingspan38-40cm
Weight38 g
FamilyApodidae
StatusLeast Concern

Appearance

Plumage is blackish brown and the wings make a distinctive anchor shape when in flight. There's a pale patch on the throat and the tail is short with a forked end. Juveniles appear quite similar to adults, but the white throat is more vivid, the wing feathers are pale-edged, and the forehead may appear pale.

Habitat

Spends most of its time in the air and is flexible according to where food is abundant and where the weather is least challenging. In the region it prefers to nest in man-made structures such as churches and lofts.

Voice

Has a high-pitched 'screeee', often heard as birds chase each other.

Full Swift profile »

Swallow

Hirundo rustica
Swallow
Length17-21cm
Wingspan32-34.5cm
Weight18 g
FamilyHirundinidae
StatusLeast Concern

Appearance

The Swallow has a wide-based bill, tail-streamers (male's usually longer than female's in spring), and a distinctly forked tail which is spotted white beneath. Plumage is shiny bluish black on top, white underneath, except for a darkish band across the chest and reddish-brown throat and sections of face. Juvenile birds have shorter tail-streamers than adults, and they are paler and more matte.

Habitat

Prefers expansive countryside and generally avoids villages and other largely populated areas. It is a flexible feeder, going to whatever areas offer up the most food; this may be lowland or upland and ranges from water to areas in close proximity to cattle.

Voice

Has a piercing 'tsvit' call, often sounded during flight or when it feels threatened. Male has a fast warble, most commonly heard from a perch close to his nest.

Full Swallow profile »

House Martin

Delichon urbica
House Martin
Length12.5cm
Wingspan26-29cm
Weight14 g
FamilyHirundinidae
StatusLeast Concern

Appearance

The House Martin has a forked tail, and the wings are shortish with pointed ends. The upperparts are bluish black, it is white underneath and the white rump stands out, particularly in flight. White feathers cover the legs and feet. Juvenile birds are duller and appear more brownish than adults.

Habitat

Inhabits towns and villages throughout the region, but is adverse to busier human areas. Prefers farmland, and occasionally nests on sea cliffs.

Voice

Has a 'prrrit' call, most often heard during flight, and a melodious warble most commonly heard around breeding territory or from a perch.

Full House Martin profile »

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