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Bonaparte’s Gull Chroicocepahalus philadelphia   [Ord, 1815]
Other Names Records Books & Links
Order: Charadriiformes Family: Laridae
BTO Codes: ON, BONGU EURING No: 5810
Number in Britain: 3 records/year
Conservation Status:
UK: Not Assessed
European: Not evaluated
Global: Least Concern
Links to: Images   Videos   Sound  

Status in UK: (A)  Accidental
Subspecies: Monotypic
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Length: 29 cm Wingspan: 95 cm Weight: M/F: 210 g    
Scientific name from: Gr.: kroikos=coloured + kephale=head and after Philadelphia, Pennsylvania
World Distribution: BREEDS: N North America, WINTERS: south to Mexico
Habitat: Coniferous woodland, winter coasts, lakes, marshes
Diet: Small fish, crustaceans and insects
TitBit: The name honours Charles Lucien Bonaparte, who made important contributions to American ornithology, it is also the only gull to nest regularly in trees  
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Records and Distribution
First Record: Strathclyde, 1850
Total Number of Records (1950-2007): 125 Summary of Records by Year
Most Likely to Occur in: Any month
Most Recent County Records:
   Scotland: Argyll (1975), Angus & Dundee (2007), Clyde (1850), Fife (2006), Highland (2004), Lothian (1998), Moray & Nairn (2007), Northeast (2007), Outer Hebrides (2007), Shetland (2005),
   North-east England: Cleveland (2006), Durham (1987), Northumberland (2006), East Yorkshire (1999), North Yorkshire (1969), West Yorkshire (2003),
   North-west England: Cheshire (2004), Lancashire (2001),
   English Midlands: Derbyshire (2000), Staffordshire (1996), Warwickshire (1992),
   Eastern England: Essex (1994), Norfolk (2007),
   South-east England: Hampshire (2003), Kent (2001), Greater London (1983), Oxfordshire (2007), Surrey (1983), East Sussex (1951), West Sussex (2002),
   South-west England: Cornwall (2006), Devon (2007), Dorset (2006), Gloucestershire (2006), Somerset (2006), Isles of Scilly (2006),
   Wales: Anglesey (1998), Ceredigion (2004), Caernarfonshire (1984), Flintshire (1994), Glamorgan (2006), Gower (2004), Pembrokeshire (1997),

Information provided by BirdGuides and BBRC
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Other Names
Previously Larus philadelphia
Gaelic: Welsh: Gwylan Bonaparte
Danish: Bonapartemåge Dutch: Kleine Kokmeeuw
Finnish: Mustahuppulokki French: Mouette de Bonaparte
German: Bonapartenmöwe Hungarian: Bonaparte sirálya
Icelandic: Trjámáfur Irish: Sléibhín Bonaparte
Italian: Gabbiano di Bonaparte Norwegian: Kanadahettemåke
Polish: Mewa kanadyjska Portuguese: Gaviota de Bonaparte
Spanish: Gaviota de Bonaparte Swedish: Trädmås
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For More Information...
Books and Monographs:
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See Also:
All About Birds (Cornell Lab of Ornithology)
Gough, G.A. et al. (1998) Patuxent Bird Identification Infocenter
Wikipedia entry
Recent sightings and information from BirdGuides.com
Find papers on Google Scholar
Find papers on Scirus

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Email: birdfacts@bto.org

These data should be cited as:
Robinson, R.A. (2005) BirdFacts: profiles of birds occurring in Britain & Ireland (v1.24, June 2009). BTO Research Report 407, BTO, Thetford (http://www.bto.org/birdfacts)

 

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