| Gulls | Legring : one, coded. | Black-headed Gull | Dark Blue [B] | Four alpha-numeric code (4 letters/numbers). | K |  |  | 
          
                  | Gulls | Legring : one, coded. | Herring Gull | Red [R] | Four alpha-numeric code (4 letters/numbers). |  | :D | Tarsus left. | 
          
                  | Gulls | Legring : one, coded. | Lesser Black-backed Gull | Red [R] | Four alpha-numeric code (4 letters/numbers). |  | :D | Tarsus left. | 
          
                  | Gulls | Legring : one, coded. | Great Black-backed Gull | Red [R] | Four alpha-numeric code (4 letters/numbers). |  | :D | Tarsus left. | 
          
                  | Gulls | Legring : one, coded. | Eurasian Mew Gull | Red [R] | Four alpha-numeric code (4 letters/numbers). | A |  |  | 
          
                  | Gulls | Legring : one, coded. | Lesser Black-backed Gull | Dark Blue [B] | Four alpha-numeric code (4 letters/numbers). | M: |  |  | 
          
                  | Gulls | Legring : one, coded. | Lesser Black-backed Gull | Black (Niger) [N] | Four alpha-numeric code (4 letters/numbers). | F |  | Tarsus left. | 
          
                  | Gulls | Legring : one, coded. | Caspian Gull | Yellow [Y] | Four alpha-numeric code (4 letters/numbers). | P: | :P |  | 
          
                  | Gulls | Legring : one, coded. | Black-headed Gull | Black (Niger) [N] | Two numeric code (2 numbers). |  |  | Tarsus left. | 
          
                  | Gulls | Legring : one, coded. | Glaucous Gull | Yellow [Y] | Five alpha-numeric code (5 letters/numbers). | C |  |  | 
          
                  | Gulls | Legring : one, coded. | Glaucous Gull | Yellow [Y] | Two alpha-numeric code (2 letters/numbers). |  |  | Tibia left. | 
          
                  | Gulls | Legring : one, coded. | Iceland Gull | Dark Blue [B] | Two alpha code (2 letters). |  |  | Tibia left. | 
          
                  | Gulls | Legring : one, coded. | Iceland Gull | White [W] | Four alpha-numeric code (4 letters/numbers). | N: |  |  | 
          
                  | Gulls | Legring : one, coded. | Yellow-legged Gull | Black (Niger) [N] | Four alpha-numeric code (4 letters/numbers). | F |  | Tarsus left. | 
          
                  | Gulls | Legring : one, coded. | Black-headed Gull | White [W] | Three alpha code (3 letters). |  |  |  | 
          
                  | Gulls | Legring : one, coded. | Herring Gull | Dark Blue [B] | Four alpha-numeric code (4 letters/numbers). | F |  | Tarsus left. | 
          
                  | Gulls | Legring : one, coded. | Black-legged Kittiwake | Yellow [Y] | Three alpha-numeric code (3 letters/numbers). | X |  |  | 
          
                  | Gulls | Legring : one, coded. | Black-headed Gull | Red [R] | Two numeric code (2 numbers). |  |  | Tarsus left. | 
          
                  | Gulls | Legring : one, coded. | Black-headed Gull | Yellow [Y] | Four alpha-numeric code (4 letters/numbers). | W |  |  | 
          
                  | Gulls | Legring : one, coded. | Black-headed Gull | Yellow [Y] | Four alpha code (4 letters). | A |  |  | 
          
                  | Gulls | Legring : one, coded. | Lesser Black-backed Gull | Red [R] | Four alpha-numeric code (4 letters/numbers). | K |  |  | 
          
                  | Gulls | Legring : one, coded. | Slender-billed Gull | Red [R] | Three alpha code (3 letters). |  |  | Tarsus left. | 
          
                  | Gulls | Legring : one, coded. | Slender-billed Gull | Red [R] | Three numeric code (3 numbers). |  |  | Tarsus left. | 
          
                  | Gulls | Legring : one, coded. | Slender-billed Gull | Red [R] | Three alpha-numeric code (3 letters/numbers). |  |  | Tarsus left. | 
          
                  | Gulls | Legring : one, coded. | Black-headed Gull | Red [R] | Four alpha code (4 letters). | H |  |  |