Roseate tern (Sterna dougallii)

Roseate tern
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Roseate tern fact file

Roseate tern description

GenusSterna (1)

The roseate tern (Sterna dougallii) was first identified in 1812 by Dr MacDougall of Glasgow, hence the specific name dougallii (2). Males and females are similar in appearance; during the breeding season they have a black forehead, crown and nape (2) and pale plumage with a rosy tinge to the breast, (3) which gives the species its common name (4). The grey tail is deeply forked with white long outer feathers called 'streamers' (3). In winter the forehead becomes white (3). A particularly vocal species on the breeding grounds, calls of the roseate tern include a 'chew-ik' and a 'kraak' when alarmed (2).

Sterne de Dougall.
Body length: 40 cm (2)
Wing span: 50 cm (2)

Roseate tern biology

In Britain and Ireland, the diet consists mainly of small fish, especially sand eels (5), which are caught by plunge-diving (2), or are stolen from other tern species (5).The roseate tern arrives back in Britain later than other terns and soon starts to lay eggs (5). One brood containing between one and three pale eggs is produced between the end of May and early June, but a replacement brood can be produced if this clutch is lost. Juveniles reach maturity at three years of age (2).


Roseate tern range

The roseate tern is widespread around the world, but its range is highly fragmented (5). In Britain, it breeds in Northumberland, the Firth of Forth and Anglesey and migrates to West Africa, especially Ghana for the winter (2).

You can view distribution information for this species at the National Biodiversity Network Atlas.

See this species on Google Earth.


Roseate tern habitat

In Britain the roseate tern forms colonies with common and Arctic terns, usually on offshore islands. Nest sites are sheltered by overhanging rock or vegetation (2).


Roseate tern status

The roseate tern is classified as Least Concern (LC) on the IUCN Red List (1). It is listed on the Birds of Conservation Concern Red List, Annex 1 of the EC Birds Directive, Appendix II of the Bern Convention, and Appendix II of the Convention on Migratory Species (Bonn Convention). Protected in the UK under Schedule 1 of the Wildlife and Countryside Act 1981 (1).

IUCN Red List species status – Least Concern


Roseate tern threats

The roseate tern is one of the rarest breeding seabirds in the UK; in 1996 only 64 pairs were recorded over five main sites. The UK population has decreased from 1000 pairs in 1969 to 210 pairs in 1989, but this is largely due to the relocation of many birds to a colony in the Republic of Ireland (6). Threats to this species include predation by foxes, brown rats and peregrines. It is likely that predation prevents the species from establishing colonies on the mainland, where predation pressures would be greater (2). Human disturbance and egg collecting may have taken a toll on the species, but this has largely been prevented in the UK by wardening schemes. Factors operating in the wintering range or during migration, such as trapping and a reduction in roost sites, will have affected adult and juvenile mortality (2). At some UK sites, flooding of the nests has been a problem and competition for nesting sites with other species of tern and even gulls may occur (6).


Roseate tern conservation

All roseate tern colonies in the UK are located within reserves and have been designated as Special Protection Areas (SPAs), a European designation (2). Artificial nesting boxes have been provided at some sites. It is hoped that this will reduce the incidence of predation and disturbance. Between 1985 and 1994 the RSPB and Birdlife International funded an education programme in Ghana, which aimed to reduce trapping of the roseate tern during winter. The roseate tern is a UK Biodiversity Action Plan priority species. The Species Action Plan aims to increase the UK population to 200 pairs by 2008 (6).

The UK Biodiversity Action Plan for this species is available at UK BAP.
There may be further information about this species available via the National Biodiversity Network Atlas.
View information on this species at the UNEP World Conservation Monitoring Centre.

Find out more

For more information on the roseate tern and other bird species:



Information authenticated by the RSPB:



  1. IUCN Red List (March, 2011)
  2. RSPB (November 2001)
  3. Peterson, R.T., Mountfort, G., Hollom. (1993) Collins Field Guide. Birds of Britain and Europe. Harper Collins, London.
  4. Greenoak, F. (1997) British birds, their folklore, names and literature. Christopher Helm A&C Black, London.
  5. Battern, L. A., Bibby, C. J., Clement, P., Elliott, G. D. and Porter, R.F. (1990) Red Data Birds in Britain. T & A.D. Poyser, London.
  6. UK Biodiversity (November 2001)

Image credit

Roseate tern  
Roseate tern

© Chris Gomersall

Chris Gomersall
14 Judith Gardens
SG19 2RJ
United Kingdom
Tel: +44 (0) 1767 260 769


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Listen to the Roseate tern

Roseate tern
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Roseate tern recordings by Charles A. Sutherland

©Â Cornell Lab of Ornithology

Macaulay Library
Cornell Lab of Ornithology
159 Sapsucker Woods Road
New York 14850
United States of America
Tel: +1 (607) 254-2404
Fax: +1 (607) 254-2439

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