No.058 · Birds · Common
Fulmar
Fulmarus glacialis
A gull-like bird that is really a cousin of the albatross, gliding on stiff wings along the cliffs and spitting foul-smelling oil at intruders.
When to look
February to September, mostly at dawn, day and dusk.
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Time of day
- Dawn
- Day
- Dusk
- Night
- Best time
- Almost all year on the cliffs at Skomer and Martin's Haven, with the most birds April–July.
- Where in the game
- the Pembrokeshire coast (sea cliff, clifftop, island and sea)
- Size
- 43–52 cm
- Wingspan
- 102–117 cm
- Weight
- About 770 g (595–970 g)
- Lifespan
- Very long-lived: oldest ringed bird nearly 42 years; young birds spend four or five years at sea and do not breed until about nine (BTO)
- Population
- 350,000 pairs in the UK (BTO, 2015). 381 apparently occupied sites on Skomer in 2024, 19% down on 2023 (Wildlife Trust of South & West Wales)
- Status
- Amber list, UK Birds of Conservation Concern (BTO)
Diet
Fish, squid, plankton and scraps, taken from the surface
Habitat
Sea cliffs, grassy ledges and open ocean
Breeding
One egg per year (on Skomer the first egg was laid 12 May in 2024 and first chick 4 July). Both parents incubate for 52–53 days; the chick fledges after 46–51 days
Field signs
- Stiff-winged, effortless gliding along the cliff face
- A pale grey back and white body, with a heavy yellow bill with tube-like nostrils
- A hoarse, cackling call from ledges
- A bird sitting on a bare ledge with a spray of oily stains below
Did you know?
- When threatened at the nest, a fulmar spits a foul-smelling oil at intruders.
- Over the last 250 years the fulmar, once confined to St Kilda and an island off Iceland, has spread to nest around Britain and beyond (BTO).
- Young fulmars spend their first four or five years at sea, and do not breed until they are about nine (BTO).
Moments worth waiting for
- Fulmar chick on the ledge
A fluffy grey fulmar chick sits tight on its ledge while its parent glides back along the cliff.
Photo tip
Fulmars glide on cliff updraughts, so stand where the wind hits the cliff and they come to you. Use 1/1600 s or faster and pan smoothly. Watch the background: pale grey birds against pale grey sky lose their outline, so shoot against dark rock or sea.
Be a good naturalist
Never approach a nesting fulmar: it will spit, and the oil ruins feathers, harming the bird's ability to stay dry. Keep to the paths and away from cliff edges.
The law
Protected as a wild bird under the Wildlife and Countryside Act 1981