Lesser Black-backed Gull (graellsii & intermedius)

(last update: May 17 2015)

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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 Nov - Dec

lbbg 2cy Jan-Febr
lbbg 2cy Mar-April
lbbg 2cy May
lbbg 2cy June
lbbg 2cy July
lbbg 2cy August
lbbg 2cy September
lbbg 2cy October
lbbg 2cy Nov - Dec

lbbg 3cy Jan-April
lbbg 3cy May
lbbg 3cy June
lbbg 3cy July
lbbg 3cy August
lbbg 3cy September
lbbg 3cy October
lbbg 3cy Nov - Dec

lbbg sub-ad Jan-April
lbbg sub-ad May
lbbg sub-ad June
lbbg sub-ad July
lbbg sub-ad Aug
lbbg sub-ad Sept
lbbg sub-ad Oct
lbbg sub-ad Nov - Dec

lbbg adult January
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lbbg adult Nov - Dec

Lesser Black-backed Gull graellsii RLA.S 2CY, March - July 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.

Please visit José's FLICKR PHOTO STREAM and also José Blog "Seabirds Portugal".

OBSERVATION REPORT

RINGS
Color ring - B[RLA.S]
Metallic ring - L916321
EURING:
-Age code - 5
-Species code - 05910 - www.cr-birding.org/node/1063
Right leg (tarsus) - Blue ring with a white four alpha code
Left leg (tarsus) - Metallic ring
Ringer - Eric Stienen (INBO)
Age at first ring - Pullus - Date - 2015.07.08
Place where ringed - Zeebrugge, West-Vlaanderen, Belgium

SPECIES
Type of bird - Larus fuscus
Age & Sexe - 1y - unknown

OBSERVATION
Date of the sighting - 12/07/2016 - my sightings/2016 - 4
Place - Leixões harbour, Matosinhos, Portugal
Coordinates: - 41.1823988,-8.6970061

LIFE HISTORY
Date - Location - Observer
08/07/2015 - Zeebrugge (Voorhaven), West-Vlaanderen, Belgium - INBO
25/09/2015 - Oostende (Windmolenwerf), West-Vlaanderen, Belgium - Baert, Jan
03/11/2015 - Póvoa de Varzim, Douro Litoral, Portugal - Hälterlein, Bernd
09/01/2016 - Vila Nova de Gaia (Afurada), Douro Litoral, Portugal - José Marques
11/01/2016 - Vila Nova de Gaia (Strand), Douro Litoral, Portugal – Armando Mota
08/03/2016 - Leixões harbour, Matosinhos, Portugal – José Marques
08/04/2016 - Leixões harbour, Matosinhos Portugal – José Marques
12/07/2016 - Leixões harbour, Matosinhos Portugal – José Marques

below: Lesser Black-backed Gull graellsii RLA.S 2CY, July 12 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.

P6 new / P9-P10 old. Compare to April and notice that 2nd gen coverts are not (yet) all mouled again, although an ordinary sequence would already include these feathers.

below: Lesser Black-backed Gull graellsii RLA.S 2CY, April 08 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.

below: Lesser Black-backed Gull graellsii RLA.S 2CY, March 08 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.

Extensive post-juvenile moult in late winter (new coverts relatively fresh and buffish).