Brent Goose Branta bernicla


Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: # _the_WP15.xls#.
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: # _the_WP15.xls#.
Cramp, S. and Perrins, C.M. 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. Oxford University Press, Oxford.
Cramp, S.; Perrins, C. M. 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. Oxford University Press, Oxford.
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

Migratory status full migrant Forest dependency Does not normally occur in forest
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 22,100,000 medium
Extent of Occurrence non-breeding (km2) 71,600,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals poor estimated 2012
Population trend Unknown not applicable -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 10.9 - - -

Population justification: The global population is estimated to number > c.560,000-650,000 individuals (Wetlands International 2015). The European population is estimated at 1,500-1,800 pairs, which equates to 3,000-3,600 mature individuals (BirdLife International 2015).

Trend justification: The overall population trend is uncertain, as some populations are decreasing, while others are stable, have unknown trends or are increasing (Wetlands International 2015). This species has undergone a small or statistically insignificant increase over the last 40 years in North America (data from Breeding Bird Survey and/or Christmas Bird Count: Butcher and Niven 2007). The European population trend is unknown (BirdLife International 2015).

Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Algeria V Extant
Austria V Extant
Barbados V Extant
Belarus V Extant Yes
Belgium N Extant Yes
Bermuda (to UK) N Extant
Bulgaria V Extant Yes
Canada N Extant
China (mainland) N Extant
Croatia V Extant
Czech Republic N Extant
Denmark N Extant Yes Yes
Egypt V Extant
Faroe Islands (to Denmark) N Extant
Finland N Extant Yes
France N Extant Yes Yes
Germany N Extant Yes Yes
Greece V Extant
Greenland (to Denmark) N Extant Yes
Hungary N Extant
Iceland N Extant Yes
Ireland N Extant Yes
Italy N Extant
Japan N Extant
Kazakhstan V Extant
Latvia N Extant
Luxembourg V Extant
Mexico N Extant
Morocco V Extant
Netherlands N Extant Yes
North Korea N Extant
Norway N Extant
Poland N Extant Yes
Portugal V Extant
Puerto Rico (to USA) N Extant
Romania N Extant Yes
Russia N Extant Yes Yes
Russia (Asian) N Extant Yes
Russia (Central Asian) N Extant Yes
Russia (European) N Extant Yes Yes
Senegal V Extant
Slovakia V Extant
South Korea N Extant
Spain V Extant Yes
St Pierre and Miquelon (to France) V Extant Yes
Svalbard and Jan Mayen Islands (to Norway) N Extant Yes
Switzerland V Extant
Taiwan, China N Extant
Tunisia V Extant
Turkey V Extant
United Kingdom N Extant Yes
USA N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Canada Akimiski Island
Canada Akimiski Strait
Canada Amherst Island
Canada Babbage and Spring River Deltas
Canada Baie de Gaspé
Canada Baie des Escoumins et Grandes-Bergeronnes
Canada Baynes Sound
Canada Boundary Bay - Roberts Bank - Sturgeon Bank (Fraser River Estuary)
Canada Brier Island and Offshore Waters
Canada Cape Henrietta Maria
Canada Cleland Island and Southeast Clayoquot Sound
Canada East Point
Canada Eastern Cape Sable Island
Canada Eastern Prince Patrick Island Coast
Canada Foxe Basin Islands
Canada Grand Manan Archipelago
Canada Hannah Bay
Canada Little Qualicum Estuary to Nanoose Bay
Canada Mackenzie River Delta
Canada McIntyre Beach and Rose Spit
Canada Netitishi Point
Canada North Point
Canada Northeast James Bay
Canada Northeast James Bay Coast
Canada Queen Maud Gulf
Canada Thomsen River
Denmark Agger Tange and Krik Vig
Denmark Ballum og Husum Enge, Kamper strandenge
Denmark Fanø
Denmark Harboøre Tange, Plet Enge & Gjeller Sø
Denmark Mandø
Denmark Parts of Randers and Mariager Fjords
Denmark Rømø
Denmark Sydfynske Ø-hav
Denmark Tøndermarsken, Magisterkog and Rudbøl Sø
Denmark Vadehavet (Wadden Sea)
France Anse du Fiers d'Ars en Ré
France Baie de Bourgneuf et marais breton
France Baie de Saint-Brieuc
France Baie de Vilaine
France Baie des Veys et Marais du Cotentin
France Baie du Mont Saint Michel et Ile des Landes
France Bassin d'Arcachon et Banc d'Arguin
France Cap Gris-nez
France Golfe du Morbihan et Etier de Penerf
France Havre de la Sienne
France Ile d'Oléron, marais de Brouage-Saint-Agnant
France Marais poitevin et baie de l'Aiguillon
France Traicts et marais salants de la Presqu'île Guérandaise
Greenland (to Denmark) Kilen
Iceland Alftafjordur-Hofsstadavogur
Iceland Alftanes-Akrar
Iceland Breidafjördur
Iceland Hvalfjardareyri-Laxárvogur
Iceland Innstavogsnes-Grunnafjördur
Iceland Skerjafjördur
Ireland Baldoyle Bay
Ireland Bannow Bay
Ireland Boyne estuary
Ireland Broadhaven, Blacksod and Tullaghan Bays and parts of the Mullet peninsula
Ireland Carlingford Lough
Ireland Castlemaine Harbour
Ireland Cummeen Strand (Sligo Harbour)
Ireland Dublin Bay
Ireland Dundalk Bay
Ireland Dungarvan Harbour
Ireland Inner Galway Bay
Ireland Killala Bay
Ireland Lough Foyle
Ireland Malahide/ Broadmeadow Estuary
Ireland North Wicklow coastal marshes
Ireland Rogerstown estuary
Ireland Shannon and Fergus Estuaries
Ireland Skerries Islands
Ireland The Cull and Killag
Ireland Tralee Bay and Barrow Harbour
Ireland Tramore Backstrand
Ireland Trawbreaga Bay
Ireland Wexford Harbour and Slobs
Japan Hakodate bay, Kameda south coast
Japan Lake Furen, On-netou
Japan Mutsu bay
Japan Northern Shimokita coast
Japan Notsuke, Odaitou
Japan South Sanriku coast
Mexico Bay Magdalena-clams
Mexico Complex Lagoon Eye of Hare
Mexico Complex Lagoon San Ignacio
Mexico Humid areas of Yávaros
Mexico Island Shark-Channel Infiernillo-tideland Santa Cruz
Mexico San Quintín Area
Netherlands Duinen Ameland
Netherlands Frisian Wadden Sea coast (superseded 29/5/2017)
Netherlands Grevelingen
Netherlands Groningen Wadden Sea coast (superseded 29/5/2017)
Netherlands Oosterschelde
Netherlands Terschelling: De Boschplaat (superseded 29/5/2017)
Netherlands Texel: Schorren and Zeeburg (superseded 29/5/2017)
Netherlands Wadden Sea
Russia (Asian) Chaun delta
Russia (Asian) Forty islands
Russia (Asian) Izvestiy Tsik islands
Russia (Asian) Karaga bay
Russia (Asian) Kavacha lagoon
Russia (Asian) Khadyn lake
Russia (Asian) Kytalyk
Russia (Asian) Lower Anadyr lowlands
Russia (Asian) Lower Nizhnyaya Taymyra river
Russia (Asian) Malamvayam lagoon
Russia (Asian) Meechkyn spit and adjacent plain
Russia (Asian) Muna-Besyuke
Russia (Asian) Sayan reservoir (Tuva part)
Russia (Asian) Wrangel and Herald Islands
Russia (Asian) Yana delta
Russia (Asian) Zhupanovskiy lagoon
Russia (European) Berezoviye islands of Vyborg Bay
Russia (European) Delta of River Severnaya Dvina
Russia (European) Torna-Shoina watershed
Russia (European) Unskaya bay
Svalbard and Jan Mayen Islands (to Norway) Adventdalen & Adventfjorden
Svalbard and Jan Mayen Islands (to Norway) Bjørnøya (Bear Island)
Svalbard and Jan Mayen Islands (to Norway) Inner parts of Kongsfjorden
Svalbard and Jan Mayen Islands (to Norway) Northwest Spitsbergen National Park
Sweden Falsterbo – Bay of Fote
Sweden Ottenby
United Kingdom Carlingford Lough
United Kingdom Chichester and Langstone Harbours
United Kingdom Dundrum Inner Bay
United Kingdom Killough Bay
United Kingdom Larne Lough
United Kingdom Lindisfarne
United Kingdom Lough Foyle and River Foyle
United Kingdom Mid-Essex Coast
United Kingdom North Norfolk Coast
United Kingdom Outer Ards
United Kingdom Portsmouth Harbour
United Kingdom Solent Marshes and Southampton Water
United Kingdom Strangford Lough and islands
United Kingdom The Wash
United Kingdom The Wash
USA Barrier Island/Lagoon System
USA Cape Island and Higbee Beach Wildlife Management Area
USA Humboldt Bay
USA Izembek-Moffet-Kinzarof Lagoons
USA Kasegaluk Lagoon
USA Teshekpuk Lake-E. Dease Inlet

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Pastureland suitable non-breeding
Grassland Tundra major breeding
Marine Intertidal Mud Flats and Salt Flats suitable non-breeding
Marine Intertidal Salt Marshes (Emergent Grasses) suitable non-breeding
Altitude   Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown
Indirect ecosystem effects, Ecosystem degradation

Purpose Primary form used Life stage used Source Scale Level Timing
Food (human) Whole Adults and juveniles Wild Non-trivial Recent
Food - human - - - Non-trivial Recent
Pets Whole Adults and juveniles Wild International Non-trivial Recent
Pets/display animals, horticulture - - - International Non-trivial Recent
Sport Whole Adults and juveniles Wild Non-trivial Recent
Sport hunting/specimen collecting - - - Non-trivial Recent

Recommended citation
BirdLife International (2019) Species factsheet: Branta bernicla. Downloaded from on 17/02/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from on 17/02/2019.