Population and Distribution
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Population Trend:
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 JNCC Seabird Monitoring Programme
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Distribution:
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No distribution maps available
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British Population Size:
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Summer:
94 pairs
in 2005-09
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First Record:
1813
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Latest Survey:
Holling, M. & RBBP (2011) British Birds 104:476-537
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Conservation Status:
RED
because
Recent Breeding Population Decline,
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Previous Assessments:
2002-2007
RED
1996-2001
RED
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Races of Concern:
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UK Biodiversity Action Plan
(Lead Partner: RSPB)
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Habitat Occupancy (in the Breeding Season):
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No habitat data from BBS
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European Population Size:
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Summer:
1800 to 2 thousand pairs
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Population Assesment from Birds in Europe
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Distribution in Europe
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European Species Action Plan
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Listed on the Appendices/Schedules of:
WCA(I), WBD(I), Bern(III), Bonn(II), AEWA
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Survey Results:
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BirdTrack
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Seabird 2000 (warning: link to large pdf)
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Breeding and Survival
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Egg Size:
43 x 30 mm
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Egg Weight:
20.4 g (of which 6 % is shell)
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Number of Nest Records:
35
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Clutch Size:
1 - 2 eggs
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Incubation:
21- 26 days
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by the:
Female (occ. Male)
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Fledging:
22 - 30days
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as:
Semi-precocial, downy
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First Clutches Laid:
29 May (15 May - 12 Jun)
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Number of Broods:
1
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Number Ringed:
796
(Annual Totals)
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Adult Survival:
0.855
± 0.047
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Juvenile Survival:
No data
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Age at First Breeding:
2
years
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Typical Lifespan:
8
years
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Maximum Recorded Age:
23 years 10 months 8 days (set in 2004)
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Summary of Ringing Recoveries
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Biometrics
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Ring Size:
C2
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Wing Length
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Adult:
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Insufficient Data
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Juvenile:
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Insufficient Data
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Male:
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Insufficient Data
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Female:
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Insufficient Data
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Weight
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Adult:
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Insufficient Data
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Juvenile:
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Insufficient Data
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Male:
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Insufficient Data
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Female:
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Insufficient Data
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Other Names
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Gaelic:
Steàrnag-stiùireach
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Welsh:
Morwennol Wridog
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Danish:
Dougallsterne
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Dutch:
Dougalls stern
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Finnish:
Ruusutiira
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French:
Sterne de Dougall
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German:
Rosenseeschwalbe
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Hungarian:
Rózsás csér
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Icelandic:
Roðaþerna
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Irish:
Geabhróg Ríoga
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Italian:
Sterna di Dougall
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Norwegian:
Rosenterne
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Polish:
Rybitwa rózowa
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Portuguese:
Andorinha-do-mar-rósea
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Spanish:
Charrán rosado
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Swedish:
Rosentärna
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For More Information...
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Books and Monographs:
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Marples, G. & Marples, A. 1934 The sea terns or sea swallows Country Life Books, London
[598.616 MAR]
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See Also:
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Find scientific papers on  Google Scholar
or  Scirus by clicking the icon
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Wikipedia entry
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BirdLife species page
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Recent sightings and information from BirdGuides
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All About Birds (Cornell Lab of Ornithology)
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Gough, G.A. et al. (1998) Patuxent Bird Identification Infocenter
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State of the Nations Birds by Chris Mead
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