Lesser Black-backed Gull (graellsii & intermedius)

(last update: 14-11-2017 )

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LBBG rings

lbbg 1cy May
lbbg 1cy June
lbbg 1cy July
lbbg 1cy August
lbbg 1cy September
lbbg 1cy October
lbbg 1cy November
lbbg 1cy December

lbbg 2cy January
lbbg 2cy February
lbbg 2cy March
lbbg 2cy April
lbbg 2cy May
lbbg 2cy June
lbbg 2cy July
lbbg 2cy August
lbbg 2cy September
lbbg 2cy October
lbbg 2cy November
lbbg 2cy December

lbbg 3cy January
lbbg 3cy February
lbbg 3cy March
lbbg 3cy April
lbbg 3cy May
lbbg 3cy June
lbbg 3cy July
lbbg 3cy August
lbbg 3cy September
lbbg 3cy October
lbbg 3cy November
lbbg 3cy December

lbbg sub-ad January
lbbg sub-ad February
lbbg sub-ad March
lbbg sub-ad April
lbbg sub-ad May
lbbg sub-ad June
lbbg sub-ad July
lbbg sub-ad August
lbbg sub-ad Sept
lbbg sub-ad Oct
lbbg sub-ad Nov
lbbg sub-ad Dec

lbbg adult January
lbbg adult February
lbbg adult March
lbbg adult April
lbbg adult May
lbbg adult June
lbbg adult July
lbbg adult August
lbbg adult September
lbbg adult October
lbbg adult November
lbbg adult December

first calendar year: October

Lesser Black-backed Gull 1CY, October 29 2015, Katwijk, the Netherlands.

Lesser Black-backed Gull 1CY, October 29 2015, Katwijk, the Netherlands.

Lesser Black-backed Gull 1CY, October 29 2015, Katwijk, the Netherlands.

Lesser Black-backed Gull 1CY, October 20 2015, Scheveningen, the Netherlands.

Lesser Black-backed Gull 1CY, October 07 2015, Katwijk, the Netherlands.

Lesser Black-backed Gull 1CY, October 09 2015, IJmuiden, the Netherlands.
 

Lesser Black-backed Gull 1CY, October 30 2015, Scheveningen, the Netherlands.

  

By October, most Lesser Black-backed Gulls have left the colonies and surrounding feeding grounds near the Maasvlakte (the Netherlands) and migrate south towards France, Portugal and Morocco. Many first winter birds that are still present in the Netherlands have moved in from northern breeding grounds in Southern Scandinavia: south tip of Norway (Vest-Agder, Kristiansand), SW Sweden (Bohuslän to Malmö), northern Germany (Helgoland) and Denmark.

At least several of these intermedius LBBG may stay in the Netherlands in winter, as proved a Swedish ringed individual, seen at December 21 2000 at Westkapelle. During late fall and early winter we did some surveys in the south of the Netherlands at the Maasvlakte (port of Rotterdam) and along the coast at Westkapelle, 65 km south of the Maasvlakte (see map). More details can be found at the distribution Section. 

Origin of 1cy LBBG in October

The juvenile - first winter Lesser Black-backed Gulls present in October in the Netherlands originate from all directions: Belgium and Britain (race graellsii), local Dutch LBBG (known as Dutch intergrades) and Scandinavian LBBG of race intermedius.


Lesser Black-backed Gull (graellsii) BLB L-911978 1CY, October 01 2010, Westkapelle, the Netherlands (Theo Muusse). From Belgium.


Lesser Black-backed Gull (graellsii) S.L 1CY, October 20 2014, Utrecht, the Netherlands (Robert van der Meer). From the Netherlands.


Lesser Black-backed Gull (intermedius) V.W7C 1CY, October 09 2014, Boulogne-sur-Mer, France (Jean-Michel Sauvage). From Denmark.

Lesser Black-backed Gull (fuscus) C5. 1X 1CY, October 01 2011, Ashdod, Israel (Amir Ben Dov). From Finland.


Lesser Black-backed Gull (heuglini) 1CY, October 25 2010, Oman. Picture: Aurélien Audevard. 

U.K. graellsi LBBG 1cy
Lesser Black-backed Gull graellsii A:D65 1CY, October 04 2015, Portimao, Portugal. Picture: Carl Baggott.
Lesser Black-backed Gull graellsii 009:F 1CY, October 07 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 011:F 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 025:F 1CY, October 10 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 061:F 1CY, October 14 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 097:F 1CY, October - November 2016, Portugal. Picture: José Marques & Carl Baggott.
Lesser Black-backed Gull graellsii L.LLJ 1CY, October 04 2013, Portimao, Portugal. Picture: Carl Baggott.
Lesser Black-backed Gull graellsii R.PRC 1CY, October 31 2016, guda beach, V.N.Gaia, Portugal. Picture: José Marques.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull graellsii 6P4 1CY, October 11 2010, Madrid, Spain. Photo by Delfín González.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull graellsii 6T5 1CY, October 02 2010, Quarteira, Faro, Portugal & February 15 2012, Tanji, The Gambia. Photo's: Michael Davis & Clive Barlow.
Lesser Black-backed Gull graellsii 0FJ2 1CY, October 20 2016, Leixões Harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 1FK1 1CY, October 20 2016, Leixões Harbour, Matosinhos, Portugal. Picture: José Marques.
ad LBBG in October, ringed in the Netherlands. (60900 bytes)Lesser Black-backed Gull graellsii 2FH5 1CY, September - October 2015, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 2FK4 1CY, October 20 2016, Leixões Harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 8FJ0 1CY, October 07 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 8FK5 1CY, October 14 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 0D0:C 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 8C0:C 1CY, October - November 2016, Portugal. Picture: José Marques & Carl Baggott.
1cy argenteus in November, ringed in Belgium. (25637 bytes)Lesser Black-backed Gull graellsii 8C1:C 1CY, October - November 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 8C2:C 1CY, October 10 2016, Matosinhos Beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 8E6:C 1CY, October 06 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii F:408 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii B+F 1CY, October 31 2016, Espinho Beach, Espinho, Aveiro, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii D+H 1CY, September - October 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii K+R 1CY, October 10 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii K+W 1CY, October - November 2016, Matosinhos Beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii P+A 1CY, October 10 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii P+U 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii C:33 1CY, October 10 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii G+S 1CY, October 02 2017, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii N:49A 1CY, October 02 2017, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.

France graellsi LBBG 1cy
Lesser Black-backed Gull graellsii 2:CBE 1CY, October 13 2015, Leixões Harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 2:DUR 1CY, October 25 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 3:AHG 1CY, October 06 2015, Leixões Harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 3:BKB 1CY, October 06 2015, Leixões Harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 3:DCH 1CY, October 10-20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 3:DCY 1CY, October 06 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 3:DEN 1CY, September - October 2016, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 3:DGE 1CY, September - November 2016, Matosinhos Beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 3:DNR 1CY-2CY, September - January 2017, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 3:DSG 1CY, October 14 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii 3:DXN 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.

Belgium graellsi Dutch intergrade LBBG 1cy
Lesser Black-backed Gull graellsii AF.0M 1CY, October 07 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull graellsii LSAG 1CY, October 18 2009, Madrid, Spain. Photo by Delfín González.
Lesser Black-backed Gull graellsii M.PAJ 1CY, October 06 2015, Leixões Harbour, Matosinhos, Portugal. Picture: José Marques.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull graellsii NUAK 1CY, October 11-12 2010, Madrid, Spain. Photo by Delfín González.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull graellsii NVAT 1CY, October 17 2010, Madrid, Spain. Photo by Delfín González.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull graellsii UAAT 1CY, October 21 2012, Madrid, Spain. Photo by Delfín González.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull graellsii YTAY 1CY, October 21 2012, Madrid, Spain. Photo by Delfín González.
Lesser Black-backed Gull graellsii ZSA.K 1CY, September - December 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
juvenile LBBG in October, ringed in Belgium. (94587 bytes)Lesser Black-backed Gull graellsii BLB L-96724 1CY, October 22 2001, Westkapelle, the  Netherlands.
juvenile LBBG in October, ringed in Belgium. (133756 bytes)Lesser Black-backed Gull graellsii BLB L-107467 1CY, October 05 2004, Westkapelle, the Netherlands. Picture Pim Wolf.
juvenile LBBG in October, ringed in Belgium. (72197 bytes)Lesser Black-backed Gull graellsii BLB H-124795 1CY, October 04 2002, Le Portel, France.
juvenile LBBG in October, ringed in Belgium. (116049 bytes)Lesser Black-backed Gull graellsii BLB L-901341 1CY, October 21 2004, Westkapelle, the Netherlands. Picture  Pim Wolf.
juvenile LBBG in October, ringed in Belgium. (124310 bytes)Lesser Black-backed Gull graellsii BLB L-901593 1CY, October 01 2004, Westkapelle, the Netherlands. Picture  Pim Wolf.
juvenile LBBG in October, ringed in Belgium. (119757 bytes)Lesser Black-backed Gull graellsii BLB L-901962 1CY, October 21 2004, Westkapelle, the Netherlands. Picture  Pim Wolf.
juvenile LBBG in October, ringed in Belgium. (119757 bytes)Lesser Black-backed Gull graellsii BLB L-911978 1CY, October 01 2010, Westkapelle, the Netherlands.
juvenile LBBG in September, ringed in Belgium. (88248 bytes)Lesser Black-backed Gull graellsii BLB L-911995 1CY, October 01 2009, Westkapelle, the Netherlands.
juvenile LBBG in October, ringed in Belgium. (131646 bytes)Lesser Black-backed Gull graellsii BLB L-xxx 1CY, October 07 2004, Westkapelle, the Netherlands. Picture  Pim Wolf.

the Netherlands graellsi Dutch intergrade LBBG 1cy
Lesser Black-backed Gull graellsii 1||2 1CY, October 10 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull graellsii 7||U 1CY, October 10 2016, Katwijk, the Netherlands.
Lesser Black-backed Gull graellsii R||5 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii T||Y 1CY, September - October 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii X||F 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii Y||F 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii P.R 1CY, October 01 2013, Portimao, Portugal. Picture: Carl Baggott.
Lesser Black-backed Gull graellsii Z.E 1CY, October 02 2013, Portimao, Portugal. Picture: Carl Baggott.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull graellsii 43 1CY, October 24 2010, Madrid, Spain. Photo by Delfín González.
Lesser Black-backed Gull graellsii 2G 1CY, October & December 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull graellsii GJ 1CY, October 21 2012, Madrid, Spain. Photo by Delfín González.
Lesser Black-backed Gull graellsii PL 1CY, October 20 2015, Matosinhos, Portugal. Picture: José Marques.
juvenile LBBG in October, ringed in Norway. (131273 bytes)Lesser Black-backed Gull graellsii SL 1CY, October & November 2014, Utrecht, the Netherlands. Picture: Robert & Frank van der Meer.
Lesser Black-backed Gull graellsii K.BXN 1CY, October 07 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii K.BXP 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii K.BXS 1CY, October 31 2016, Espinho Beach, Espinho, Aveiro, Portugal. Picture: José Marques.
juvenile LBBG in October, ringed in the Netherlands.Lesser Black-backed Gull graellsii 1cy NLA 5.333.412 October 27 2000, Westkapelle, the Netherlands. Photo by Pim Wolf.
juvenile LBBG in October, ringed in the Netherlands. (97902 bytes)Lesser Black-backed Gull graellsii 1cy NLA 5.410.093 October 17 2002, Scheveningen, the Netherlands.
juvenile LBBG in October, ringed in the Netherlands. (131935 bytes)Lesser Black-backed Gull graellsii 1cy NLA 5.412.205 October 21 2004, Westkapelle, the Netherlands. Picture  Pim Wolf.
juvenile LBBG in October, ringed in the Netherlands. (132022 bytes)Lesser Black-backed Gull graellsii 1cy NLA 5.412.253 October 21 2004, Westkapelle, the Netherlands. Picture  Pim Wolf.
juvenile LBBG in October, ringed in the Netherlands. (111218 bytes)Lesser Black-backed Gull graellsii 1cy NLA 5.412.281 October 02 2004, Amsterdam, the Netherlands. Picture Ruud Altenburg.
juvenile LBBG in October, ringed in the Netherlands. (111218 bytes)Lesser Black-backed Gull graellsii 1cy NLA 5.412.308 October 21 2004, Westkapelle, the Netherlands. Picture  Pim Wolf.
juvenile LBBG in October, ringed in the Netherlands. (111218 bytes)Lesser Black-backed Gull graellsii 1cy NLA 5.xx1.418 October 03 2004, Amsterdam, the Netherlands. Picture Ruud Altenburg.
juvenile LBBG in October, ringed in the Netherlands. (111218 bytes)Lesser Black-backed Gull graellsii 1cy NLA 5.462.xxx October 25 2010, Dordrecht, the Netherlands.
juvenile LBBG in October, ringed in the Netherlands.Lesser Black-backed Gull graellsii 1cy E528 October 01 2001, Le Portel, France.This bird remained at this location at least until July 2002.

N Germany graellsi to intermedius transition LBBG 1cy
Lesser Black-backed Gull graellsii HAE20 1CY, October 14 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii HAL24 1CY, October 14 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull graellsii HAR21 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
1cy argenteus in November, ringed in Belgium. (25637 bytes)Lesser Black-backed Gull graellsii HE7E3 1CY-2CY, October 2015 & December 2016, the Netherlands & Portugal. Picture: Mars Muusse & José Marques.
1cy argenteus in November, ringed in Belgium. (25637 bytes)Lesser Black-backed Gull graellsii HEE89 1CY, October 26 2014, Landfill VRSU de Colmenar Viejo, Madrid, Spain. Picture: Delfín González.
1cy argenteus in November, ringed in Belgium. (25637 bytes)Lesser Black-backed Gull graellsii HN30A 1CY, October 05 2016, Katwijk, the Netherlands.
Lesser Black-backed Gull graellsii HN76K 1CY, October 07 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
1cy argenteus in November, ringed in Belgium. (25637 bytes)Lesser Black-backed Gull graellsii HV612 1CY, October 16 2013, Oostende, Belgium. Picture: Jan Baert.
1cy argenteus in November, ringed in Belgium. (25637 bytes)Lesser Black-backed Gull graellsii HV885 1CY, October 31 2013, Westkapelle, the Netherlands. Picture: Theo Muusse.
1cy argenteus in November, ringed in Belgium. (25637 bytes)Lesser Black-backed Gull graellsii H548 1CY, October 17 2007, Westkapelle, the Netherlands.
2cy intermedius in October, ringed in Norway. (97235 bytes)Lesser Black-backed Gull graellsii H1N0 1CY, September 23 - October 04 2011, Utrecht, the Netherlands. Picture: Frank van der Meer & Herman Bouman.
2cy intermedius in October, ringed in Norway. (97235 bytes)Lesser Black-backed Gull graellsii HE89 1CY, October 27 2014, Rotterdam, the Netherlands. Picture: Merijn Loeve.
juvenile LBBG in October, ringed on Helgoland. (145540 bytes)Lesser Black-backed Gull graellsii DEH 42850211CY, October 19 2004, Westkapelle, the Netherlands
juvenile LBBG in October, ringed on Helgoland. (70923 bytes)Lesser Black-backed Gull graellsii DEH 428501x 1CY, October 04 2004, Westkapelle, the Netherlands

Denmark intermedius LBBG 1cy
juvenile LBBG in October, ringed in Denmark.Lesser Black-backed Gull intermedius V0SE 1CY, October 14 2010, Westkapelle, the Netherlands.
1cy argenteus in November, ringed in Belgium. (25637 bytes)Lesser Black-backed Gull intermedius V7PM 1CY, October 17 2007, Westkapelle, the Netherlands.
Lesser Black-backed Gull intermedius V169 1CY, October 26 2008, Madrid, Spain. Picture: Delfín González.
juvenile LBBG in October, ringed in Norway. (131273 bytes)Lesser Black-backed Gull intermedius V794 1CY, October 06 2009, Westkapelle, the Netherlands.
Lesser Black-backed Gull intermedius V.AW7 1CY, October 14 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius V.HK2 1CY, October 09 2015, Matosinhos Beach, Matosinhos, Portugal. Picture: José Marques.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull intermedius VJY8 1CY, October 10 2016, Katwijk, the Netherlands.
Lesser Black-backed Gull intermedius V.RA4 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius V.RH9 1CY, October 14 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius V.RJ8 1CY, October 07 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius V.SU6 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius V.UH8 1CY, October 31 2016, Matosinhos Beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius V.VW9 1CY, October 02 2017, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
juvenile LBBG in October, ringed in Norway. (131273 bytes)Lesser Black-backed Gull intermedius VW7C 1CY, October 09 2014, Boulogne-sur-Mer, France. Picture: Jean-Michel Sauvage.
1cy argenteus in November, ringed in Belgium. (25637 bytes)Lesser Black-backed Gull intermedius VX8P 1CY, October 26 2014, Landfill VRSU de Colmenar Viejo, Madrid, Spain. Picture: Delfín González.
juvenile LBBG in October, ringed in Norway. (131273 bytes)Lesser Black-backed Gull intermedius VY7Z 1CY, October 20 2014, Castricum, the Netherlands. Picture: Ruud Altenburg.
Lesser Black-backed Gull intermedius V.Y8C 1CY, October 10 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
juvenile LBBG in October, ringed in Denmark.Lesser Black-backed Gull intermedius DKC 4413022 1CY, October 03 2016, Katwijk, the Netherlands.
juvenile LBBG in October, ringed in Denmark.Lesser Black-backed Gull intermedius DKC 4272489 1CY, October 25 1999, Westkapelle, the Netherlands.

Norway intermedius LBBG 1cy
Lesser Black-backed Gull intermedius J074H 1CY, October 31 2016, Aguda beach, V.N.Gaia, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J107H 1CY, October 20-25 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J119R 1CY, October 10 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J151H 1CY, October 10 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J152R 1CY, October 07 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J196R 1CY, October 25 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
juvenile LBBG in October, ringed in Norway. (131273 bytes)Lesser Black-backed Gullintermedius J203L 1CY, October 20 2014, Castricum, the Netherlands. Picture: Ruud Altenburg.
Lesser Black-backed Gull intermedius J227E 1CY, October 31 2016, Aguda beach, V.N.Gaia, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J297E 1CY, October 14 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J304H 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J352E 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J382V 1CY, October 25 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J386R 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull intermedius J415Z 1CY, October 10 2016, Katwijk, the Netherlands.
Lesser Black-backed Gull intermedius J485H 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J608R 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull intermedius J687L 1CY, October 25-31 2016, Portugal. Picture: Francisco Bernardo & José Marques.
Lesser Black-backed Gull intermedius J738R 1CY, October 25 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J779Z 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J883Z 1CY, October 14 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J892Z 1CY, October 20 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius J915Z 1CY, October 07 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
Lesser Black-backed Gull intermedius JAU71 1CY, October 14 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.
juvenile LBBG in October, ringed in Norway. (131273 bytes)Lesser Black-backed Gull intermedius J1HE 1CY, October 11 2009, IJmuiden, the Netherlands. Picture: Ruud Altenburg.
juvenile LBBG in October, ringed in Norway. (131273 bytes)Lesser Black-backed Gull intermedius J4J7 1CY, October 29 2007, Westkapelle, the Netherlands.
juvenile LBBG, ringed in the Netherlands.Lesser Black-backed Gull intermedius J55N 1CY, October 07 2007, Madrid, Spain. Photo by Delfín González.
1cy argenteus in November, ringed in Belgium. (25637 bytes)Lesser Black-backed Gull intermedius J5V1 1CY, October 27 2007 Amsterdam, the Netherlands.
3cy graellsii in September, ringed in the Netherlands. (82981 bytes)Lesser Black-backed Gull intermedius J6T5 1CY, October 07 2008, Westkapelle, the Netherlands.
juvenile LBBG in October, ringed in Norway. (131273 bytes)Lesser Black-backed Gull intermedius JE26 1CY, October 27 2006, Westkapelle, the Netherlands.
3cy graellsii in September, ringed in the Netherlands. (82981 bytes)Lesser Black-backed Gull intermedius JK6R 1CY, October 01 2012, Westkapelle, the Netherlands.
Lesser Black-backed Gull intermedius JM5Z 1CY, October 27 2015, Matosinhos Beach, Matosinhos, Portugal. Picture: José Marques.
3cy graellsii in September, ringed in the Netherlands. (82981 bytes)Lesser Black-backed Gull intermedius JZE2 1CY, October 11 2009, Westkapelle, the Netherlands.
1cy argenteus in November, ringed in Belgium. (25637 bytes)Lesser Black-backed Gull intermedius J5TV 1CY, October 27 2007 Amsterdam, the Netherlands.
juvenile LBBG in October, ringed in Norway. (131273 bytes)Lesser Black-backed Gull intermedius J6JY 1CY, October 27 2006, Westkapelle, the Netherlands.
juvenile LBBG in October, ringed in Norway. (131273 bytes)Lesser Black-backed Gull intermedius JR6P 1CY, October 01 2004, Westkapelle, the Netherlands.
juvenile LBBG in October, ringed in Norway. (90072 bytes)Lesser Black-backed Gull intermedius JM20 1CY, October 09 2001, Westkapelle, the Netherlands.
juvenile LBBG in October, ringed in Denmark.Lesser Black-backed Gull fuscus fuscus NOS 4266104 1CY, October 14 2010, Westkapelle, the Netherlands.