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British Population Size:
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Summer:
490 pairs
in 2005-09
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Winter:
1800 individuals
in 2004-09
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First Record:
Greater London, 1866
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First Breeding Record:
Hampshire 1968
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Latest Survey:
Holling, M. & RBBP (2011) British Birds 104:476-537
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Conservation Status:
AMBER
because
Small Breeding Population,
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Previous Assessments:
2002-2007
AMBER
1996-2001
AMBER
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Races of Concern:
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Habitat Occupancy (in the Breeding Season):
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No habitat data from BBS
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Migration routes:
Map of foreign ringing recoveries
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European Population Size:
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Summer:
117 to 310 thousand pairs
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Population Assesment from Birds in Europe
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Distribution in Europe mapped by the EBCC Atlas
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Listed on the Appendices/Schedules of:
WCA(I), WBD(I), Bern(III), Bonn(II), AEWA
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Breeding and Survival
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Egg Size:
54 x 38 mm
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Egg Weight:
42.5 g (of which 6 % is shell)
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Number of Nest Records:
0
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Clutch Size:
3 eggs
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Incubation:
23- 25 days
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by the:
Male + Female
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Fledging:
35 - 40days
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as:
Semi-precocial, downy
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First Clutches Laid:
Unavailable
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Number of Broods:
1
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Number Ringed:
Annual Totals
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Adult Survival:
No data
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Juvenile Survival:
No data
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Age at First Breeding:
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Typical Lifespan:
No data
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Maximum Recorded Age:
15 years 3 months 7 days (set in 2006)
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Read a summary of Ringing Recoveries
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Biometrics
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Ring Size:
E
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Wing Length
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Adult:
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305.8 ± 8.8
Range
281.0 - 325.0 mm, (N = 68)
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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
|
Adult:
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330.7 ± 37.08
Range
260.0 - 390.0 g , (N =33)
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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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Seasonal:
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Winter 328.1 ± 38.57 (N = 35)
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Source:
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British Trust for Ornithology (2005) Ringing Scheme data
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Other Names
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Gaelic:
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Welsh:
Gwylan Mr y Canoldir
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Danish:
Sorthovedet måge
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Dutch:
Zwartkopmeeuw
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Finnish:
Mustanmerenlokki
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French:
Mouette mélanocéphale
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German:
Schwarzkopfmöwe
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Hungarian:
Szerecsensirály
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Icelandic:
Lónamáfur
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Irish:
Sléibhín Meánmhuirí
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Italian:
Gabbiano corallino
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Norwegian:
Svartehavsmåke
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Polish:
Mewa czarnoglowa
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Portuguese:
Gaivota-de-cabeça-preta
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Spanish:
Gaviota cabecinegra
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Swedish:
Svarthuvad mås
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For More Information...
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Books and Monographs:
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No books written recently
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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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Read State of the Nations Birds by Chris Mead
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