| Gulls | Legring : one, coded. | Yellow-legged Gull | Red [R] | Four alpha-numeric code (4 letters/numbers). |  |  |  | 
          
                  | Gulls | Legring : one, coded. | Herring Gull | Dark Green [G] | Four alpha code (4 letters). | F |  |  | 
          
                  | Gulls | Legring : one, coded. | Herring Gull | Black (Niger) [N] | Four alpha-numeric code (4 letters/numbers). |  | :N | Tarsus left. | 
          
                  | Gulls | Legring : one, coded. | Eurasian Mew Gull | Red [R] | Three alpha-numeric code (3 letters/numbers). |  |  |  | 
          
                  | Gulls | Legring : one, coded. | Black-headed Gull | White [W] | Four alpha-numeric code (4 letters/numbers). | A |  |  | 
          
                  | Gulls | Legring : one, coded. | Lesser Black-backed Gull | Yellow [Y] | Four alpha-numeric code (4 letters/numbers). |  | :W |  | 
          
                  | Gulls | Legring : one, coded. | Herring Gull | Yellow [Y] | Four alpha-numeric code (4 letters/numbers). |  | :W |  | 
          
                  | Gulls | Legring : one, coded. | Great Black-backed Gull | Yellow [Y] | Four alpha-numeric code (4 letters/numbers). |  | :W |  | 
          
                  | Gulls | Legring : one, coded. | Herring Gull | Yellow [Y] | Four alpha code (4 letters). | X |  |  | 
          
                  | Gulls | Legrings : combination of coded. | Herring Gull | Yellow [Y] |  |  |  |  | 
          
                  | Gulls | Legring : one, coded. | Little Gull | Yellow [Y] | Two alpha code (2 letters). |  |  |  | 
          
                  | Gulls | Legring : one, coded. | Black-legged Kittiwake | Violet/Mauve/Purple [V] | Two alpha code (2 letters). |  |  |  | 
          
                  | Gulls | Legring : one, coded. | Black-legged Kittiwake | Dark Green [G] | Three alpha code (3 letters). | A |  |  | 
          
                  | Gulls | Legring : one, coded. | Black-legged Kittiwake | Dark Green [G] | Three alpha-numeric code (3 letters/numbers). | A |  |  | 
          
                  | Gulls | Legring : one, coded. | Black-legged Kittiwake | Red [R] | Three alpha-numeric code (3 letters/numbers). | B |  |  | 
          
                  | Gulls | Legring : one, coded. | Black-legged Kittiwake | Red [R] | Three alpha code (3 letters). | B |  |  | 
          
                  | Gulls | Legring : one, coded. | Black-legged Kittiwake | Yellow [Y] | Three alpha-numeric code (3 letters/numbers). | X |  |  | 
          
                  | Gulls | Legring : one, coded. | Black-legged Kittiwake | Yellow [Y] | Three alpha code (3 letters). | X |  |  | 
          
                  | Gulls | Legring : one, coded. | Black-legged Kittiwake | Dark Blue [B] | Three alpha-numeric code (3 letters/numbers). | X |  |  | 
          
                  | Gulls | Legring : one, coded. | Yellow-legged Gull | Yellow [Y] | Four alpha-numeric code (4 letters/numbers). | P: | :P |  | 
          
                  | Gulls | Legring : one, coded. | Herring Gull | Dark Blue [B] | Four alpha-numeric code (4 letters/numbers). | C: |  | Tarsus left. | 
          
                  | Gulls | Legring : one, coded. | Black-headed Gull | Yellow [Y] | Five alpha-numeric code (5 letters/numbers). | S |  |  | 
          
                  | Gulls | Legring : one, coded. | Black-legged Kittiwake | Dark Blue [B] | Three alpha-numeric code (3 letters/numbers). |  |  |  | 
          
                  | Gulls | Legring : one, coded. | Herring Gull | Yellow [Y] | Four alpha code (4 letters). | P |  |  | 
          
                  | Gulls | Legring : one, coded. | Herring Gull | Yellow [Y] | Four alpha-numeric code (4 letters/numbers). | P: | :P |  |