Lesser Black-backed Gull (graellsii & intermedius)

(last update: May 17 2015)

Lesser Black-backed Gull graellsii T.GAF 2CY & 5CY, March 2012 & April 2015, Madrid, Spain & Saint-Léonard, France. Picture: Delfín González & Jean-Michel Sauvage.

Ringed as pullus on July 10 2011 at Zeebrugge (Voorhaven), West-Vlaanderen, Belgium 51°21'0''N 3°11'0''E.

Observations:
10/07/2011 - Zeebrugge (Voorhaven), West-Vlaanderen, Belgium 51°21'0''N 3°11'0''E INBO co
18/11/2011 - Valdoviño (Strand), A Coruña, Spain 43°38'0''N 8°7'0''W Gutierrez,A
18/11/2011 - Valdoviño (Strand), A Coruña, Spain 43°38'0''N 8°7'0''W Vidal Meilán,J
04/03/2012 - Colmenar Viejo (Vuilstort), Madrid, Spain 40°40'0''N 3°46'0''W González,D
11/03/2012 - Colmenar Viejo (Vuilstort), Madrid - G.D
17/02/2013 - Colmenar Viejo (Vuilstort), Madrid - G.D
24/02/2013 - Colmenar Viejo (Vuilstort), Madrid - G.D
03/03/2013 - Colmenar Viejo (Vuilstort), Madrid - Ruiz,J
18/03/2013 - Colmenar Viejo (Vuilstort), Madrid -González, Delfín ob
21/12/2013 - Colmenar Viejo (Vuilstort), Madrid - Ruiz,J
26/03/2014 - Dannes (Vuilstort), Pas-de-Calais, France 50°35'0''N 1°38'0''E Vercruijsse,H.J.P
28/04/2014 - Zeebrugge (Voorhaven), West-Vlaanderen, Belgium 51°21'0''N 3°11'0''E Matheve,H
16/07/2014 - Saint-Léonard (La Liane), Pas-de-Calais, France 50°42'0''N 1°36'0''E Sauvage,JM
05/09/2014 - Le Portel (Strand), Pas-de-Calais, France 50°42'0''N 1°34'0''E Sauvage,JM
11/09/2014 - Boulogne-sur-Mer (Haven), Pas-de-Calais, France 50°43'0''N 1°35'0''E Decory,P
???
19/04/2015 - Saint-Léonard (La Liane), Pas-de-Calais, France 50°42'0''N 1°36'0''E Sauvage,JM

below: Lesser Black-backed Gull graellsii T.GAF 5CY, April 19 2015, Saint-Léonard, NW France. Picture: Jean-Michel Sauvage.

Is this a bird on its way north to Belgium, or will it stay to breed in St Léonard? We will see. Anyway, there is already an existing colony here at Saint-Léonard, a detailed estimation of the breeding numbers will follow later in the season. To be continued...

below: 2cy T.GAF March 04 2012, Landfill VRSU de Colmenar Viejo, Madrid, Spain. Picture: Delfín González.

All scapulars replaced, fresh US probably now replaced for 3rd gen feathers. Tertials and coverts juvenile.

below: 2cy T.GAF February 26 2012, Landfill VRSU de Colmenar Viejo, Madrid, Spain. Picture: Delfín González.

All scapulars replaced, fresh US probably now replaced for 3rd gen feathers. Tertials and coverts juvenile.