| 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            Dark Blue [B]           | 
                  
            Three numeric code (3 numbers).           | 
                  
            4           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Sandwich Tern           | 
                  
            Yellow [Y]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
            K:           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Whiskered Tern           | 
                  
            Yellow [Y]           | 
                  
            Two alpha-numeric code (2 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Crested Tern           | 
                  
            Yellow [Y]           | 
                  
            Two numeric code (2 numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Little Tern           | 
                  
            Dark Blue [B]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
            H           | 
                  
                       | 
                  
            Tarsus left.           | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Little Tern           | 
                  
            Dark Blue [B]           | 
                  
            Three alpha code (3 letters).           | 
                  
            H           | 
                  
                       | 
                  
            Tarsus left.           | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Whiskered Tern           | 
                  
            Yellow [Y]           | 
                  
            Two alpha code (2 letters).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Whiskered Tern           | 
                  
            Yellow [Y]           | 
                  
            Two numeric code (2 numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Crested Tern           | 
                  
            Yellow [Y]           | 
                  
            Two alpha-numeric code (2 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            White-winged Black Tern           | 
                  
            White [W]           | 
                  
            Two alpha-numeric code (2 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            White [W]           | 
                  
            Two alpha-numeric code (2 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Lesser Crested Tern           | 
                  
            Yellow [Y]           | 
                  
            Two alpha code (2 letters).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            White-winged Black Tern           | 
                  
            White [W]           | 
                  
            Two alpha code (2 letters).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Sandwich Tern           | 
                  
            Red [R]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
            M           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            White [W]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
            A or C or E or L           | 
                  
                       | 
                  
            Tarsus left.           | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            White-winged Black Tern           | 
                  
            White [W]           | 
                  
            Two numeric code (2 numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Sandwich Tern           | 
                  
            Dark Green [G]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
            M           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            Light Green (Lime) [L]           | 
                  
            Three alpha code (3 letters).           | 
                  
            A           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Flag : one, coded.           | 
                  
            Common Tern           | 
                  
            White [W]           | 
                  
            Three alpha code (3 letters).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            White [W]           | 
                  
            Three alpha code (3 letters).           | 
                  
            X           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded (symbol and code).           | 
                  
            Common Tern           | 
                  
            White [W]           | 
                  
                       | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            White [W]           | 
                  
            Two alpha code (2 letters).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Little Tern           | 
                  
            Red [R]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
            A           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Sandwich Tern           | 
                  
            Red [R]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
            C           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Arctic Tern           | 
                  
            Dark Green [G]           | 
                  
            Two numeric code (2 numbers).           | 
                  
                       | 
                  
                       | 
                  
            Tarsus left.           |