Lesser Black-backed Gull graellsii 6= 1CY, September 02 2016, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.
Please visit José's FLICKR PHOTO STREAM and also José Blog "Seabirds Portugal".
OBSERVATION REPORT
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RINGS
Color ring - G[6=]
Metallic ring - 5512870
EURING code - www.cr-birding.org/node/1079
Left leg (tibia) Metallic ring
Right leg (tibia) Green ring with a two alfa-symbol code
Ringer - Hans Keijser
Age at first ring - Pullus - Date - 2016.07.11
Place where ringed - Europoort (Dintelhaven), Zuid-Holland, NL
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SPECIES
Type of bird - Larus fuscus
Age & Sexe - immature - unknown
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OBSERVATION
Date of the sighting - 02.09.2016 - my sightings/2016 - 1
Place - Leixões harbour, Matosinhos, Portugal
Coordinates: - 41.1823988, -8.6970061
Notes: (Partieel leucisme) Bird clean and healthy looking
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LIFE HISTORY
Date - Location - Observer
11.07.2016 Europoort (Dintelhaven), Zuid-Holland, NL – Hans Keijser
02.09.2016 Leixões harbour, Matosinhos, Portugal - José Marques
Completely juvenile plumage, but something went wrong; look e.g. the white outer primaries.
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