| 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Slender-billed Gull           | 
                  
            White [W]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Orange [O]           | 
                  
            Four alpha-numeric code (4 letters/numbers).           | 
                  
                       | 
                  
            M           | 
                  
            Tarsus left.           | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Audouin's Gull           | 
                  
            White [W]           | 
                  
            Four alpha-numeric code (4 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Yellow [Y]           | 
                  
            Four alpha-numeric code (4 letters/numbers).           | 
                  
            H           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Yellow-legged Gull           | 
                  
            Black (Niger) [N]           | 
                  
            Three alpha code (3 letters).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Light Green (Lime) [L]           | 
                  
            Two alpha-numeric code (2 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Orange [O]           | 
                  
            Four numeric code (4 numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Yellow [Y]           | 
                  
            Four alpha-numeric code (4 letters/numbers).           | 
                  
            V           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Audouin's Gull           | 
                  
            Red [R]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Audouin's Gull           | 
                  
            Yellow [Y]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Yellow [Y]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Dark Green [G]           | 
                  
            Four alpha-numeric code (4 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Orange [O]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
            S           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Orange [O]           | 
                  
            Four alpha-numeric code (4 letters/numbers).           | 
                  
            N           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Light Green (Lime) [L]           | 
                  
            Four alpha-numeric code (4 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legrings : combination of uncoded.           | 
                  
            Lesser Black-backed Gull           | 
                  
                       | 
                  
                       | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Dark Green [G]           | 
                  
            Four alpha-numeric code (4 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Dark Green [G]           | 
                  
            Four alpha-numeric code (4 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Dark Green [G]           | 
                  
            Four alpha-numeric code (4 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legrings : combination of one coded and uncoded rings.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Dark Green [G]           | 
                  
                       | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Red [R]           | 
                  
            Four alpha-numeric code (4 letters/numbers).           | 
                  
            A           | 
                  
                       | 
                  
            Tarsus right.           | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Red [R]           | 
                  
            Four alpha-numeric code (4 letters/numbers).           | 
                  
            H           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Red [R]           | 
                  
            Three alpha code (3 letters).           | 
                  
                       | 
                  
                       | 
                  
            Tarsus left.           | 
              
          
                  | 
            Gulls           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
            Red [R]           | 
                  
            Four alpha-numeric code (4 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
            Tarsus left.           | 
              
          
                  | 
            Gulls           | 
                  
            Legrings : combination of coded.           | 
                  
            Lesser Black-backed Gull           | 
                  
                       | 
                  
                       | 
                  
                       | 
                  
                       | 
                  
                       |