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Peregrine Falcon, juvenile.

Peregrine

Irish Name:

Fabhcún gorm

Scientific name:

Falco peregrinus

Bird Family:

Raptors

green

Conservation status

Status

Widespread resident in Ireland.

 

Identification

A bird of prey (raptor) with a short hooked bill. A species of falcon with a heavy powerfully built body, medium length tail and wings which are broad close to the body and pointed at the tip. Sexual size difference, the female is larger than the male. Male and female plumages are the same, unlike Merlins, the species most likely to be confused with Peregrine Falcon. Adults are bluey grey above, with a barred tail; the underparts are white and finely barred, the check, throat and upper breast are plain white and contrast with a black hood and thick moustachal stripe. Juvenile birds are similar to adults but have brownish upperparts and streaked, not barred, feathers on the body.

 

Voice

Mainly silent away from its breeding site. Main call is a hard persistent cackling.

 

Diet

Mainly birds, usually taken in the air and sometimes on the ground or on water. Employs spectacular hunting technique where the bird 'stoops' from high above its intended prey, with its wings held close into the body, reaching great speeds. Estimates of speeds vary, but it seems likely that birds reach speeds in excess of 300km/hour, making it the fastest animal on the planet. Kills its prey with force of its impact using its legs at the last moment to inflict the killer blow. Prey includes pigeons, including feral birds, thrushes, waders and wildfowl, gulls and seabirds.

 

Breeding

Breeds on coastal and inland cliffs. Most birds on the coast breed on the south, west and north coasts, coastal breeding on the east coast is limited by the availability of suitable nesting cliffs. Most inland birds breed on mountain cliffs but will also breed at lower levels. The species is still recovering from a dramatic and well documented decline in the 1950s and 60s due to the effects of pesticide poisoning. The responsible pesticides have been banned and the species has been recovering slowly.

 

Wintering

Resident in Ireland, but shows some movement away from its breeding areas in the winter. Can be found on the coast, especially on estuaries where they hunt on concentrations of water birds. Some birds move into cites, where feral pigeons provide suitable prey; individuals have been captured on film by a road traffic camera looking down over the quays in central Dublin. Some birds at this time of the year could have immigrated from Britain or even further afield.

 

Monitored by

Countryside Bird Survey.

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Uploaded on October 16, 2025