| 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            Red [R]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
            A           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Little Tern           | 
                  
            Dark Green [G]           | 
                  
            Three alpha code (3 letters).           | 
                  
            H or J or N or S or U or X or Y or Z           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Little Tern           | 
                  
            Dark Green [G]           | 
                  
            Three numeric code (3 numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Flag : one, coded.           | 
                  
            Common Tern           | 
                  
            Yellow [Y]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Gull-billed Tern           | 
                  
            Dark Blue [B]           | 
                  
            Two numeric code (2 numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded (symbol and code).           | 
                  
            Sandwich Tern           | 
                  
            Yellow [Y]           | 
                  
            Two alpha code (2 letters).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            Dark Blue [B]           | 
                  
            Three numeric code (3 numbers).           | 
                  
            7           | 
                  
                       | 
                  
            Tarsus left.           | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            Red [R]           | 
                  
            Three alpha code (3 letters).           | 
                  
            R           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Flag : one, coded.           | 
                  
            Arctic Tern           | 
                  
            Dark Blue [B]           | 
                  
            Three numeric code (3 numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            Orange [O]           | 
                  
            Three numeric code (3 numbers).           | 
                  
            7           | 
                  
                       | 
                  
            Tarsus left.           | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            Dark Green [G]           | 
                  
            Three numeric code (3 numbers).           | 
                  
            6           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            Red [R]           | 
                  
            Three numeric code (3 numbers).           | 
                  
                       | 
                  
                       | 
                  
            Tarsus left.           | 
              
          
                  | 
            Terns           | 
                  
            Flag : one, coded.           | 
                  
            Common Tern           | 
                  
            Yellow [Y]           | 
                  
            Three numeric code (3 numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Sandwich Tern           | 
                  
            White [W]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
            T           | 
                  
                       | 
                  
            Tarsus left.           | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Sandwich Tern           | 
                  
            White [W]           | 
                  
            Three alpha code (3 letters).           | 
                  
            T           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            Yellow [Y]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            Dark Blue [B]           | 
                  
            Three alpha code (3 letters).           | 
                  
            L or H           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Whiskered Tern           | 
                  
            Dark Blue [B]           | 
                  
            Three alpha code (3 letters).           | 
                  
            C           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            Dark Blue [B]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
            L or H           | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Roseate Tern           | 
                  
            Red [R]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
            1           | 
                  
                       | 
                  
            Tarsus right.           | 
              
          
                  | 
            Terns           | 
                  
            Flag : one, coded.           | 
                  
            Common Tern           | 
                  
            White [W]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            Red [R]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
            Tarsus left.           | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Sandwich Tern           | 
                  
            Red [R]           | 
                  
            Three alpha-numeric code (3 letters/numbers).           | 
                  
                       | 
                  
                       | 
                  
            Tarsus left.           | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Sandwich Tern           | 
                  
            Orange [O]           | 
                  
            Three numeric code (3 numbers).           | 
                  
                       | 
                  
                       | 
                  
                       | 
              
          
                  | 
            Terns           | 
                  
            Legring : one, coded.           | 
                  
            Common Tern           | 
                  
            Red [R]           | 
                  
            Three alpha code (3 letters).           | 
                  
            B           | 
                  
                       | 
                  
            Tarsus right.           |