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	  Lesser Black-backed Gull graellsii 030:F 2CY, May 16 - June 01 2017, 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 - O[030:F] 
Metallic ring 
      EURING code - 05910 - www.cr-birding.org/node/3735  
        Right leg (tarsus) metallic  ring 
        Left leg (tarsus) - Orange  ring with a black four alpha-numeric code 
        Ringer - 
        Age at first ring - - Date - 
        Place where ringed - Scotland 
  ∞ 
        SPECIES 
        Type of bird - Larus fuscus 
        Age & Sexe - immature -  unknown 
  ∞ 
        OBSERVATION 
        Date of the sighting -  30.05.2017 - Time - morning 
        - my sightings/2017 - 3 -  total of my sightings: 3 
        Place - Leixões harbour,  Matosinhos, Portugal 
        Coordinates: - 41.1823988,  -8.6970061 
  ∞ 
        LIFE HISTORY 
      Date Location Observer 
      16.05.2017 Leixões Harbour, Matosinhos,  Portugal – José Marques 
        30.05.2017 Leixões Harbour, Matosinhos,  Portugal – José Marques 
      01.06.2017 Leixões Harbour, Matosinhos,  Portugal – José Marques 
      below: Lesser Black-backed Gull graellsii 030:F 2CY, June 01 2017, Leixões harbour, Matosinhos, Portugal. Picture: José Marques.      
      P1-P2 missing. 
  
below: Lesser Black-backed Gull graellsii 030:F 2CY, May 30 2017, Leixões harbour, Matosinhos, Portugal. Picture: José Marques. 
  
below: Lesser Black-backed Gull graellsii 030:F 2CY, May 16 2017, Leixões harbour, Matosinhos, Portugal. Picture: José Marques. 
Scaps replaced in post-juvenile moult last winter. All coverts and tertials retained juvenile. 
 
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