Common Tern

Green ring with a white three alpha-numeric code, starting-letter 'I'.

note 1 :

Yellow ring with a black three alpha-numeric code.

note 1 : used codes are : L and two numbers (L00-L99, 00L-99L, 0L0-9L9)

note 2 : letter 'L' on first, second or third position. Other two digests are numbers.

note 3 : birds ringed in the Dutch inland.

note 4 : the codes 50L untill 99L are used bij VRS de Haar. 

note 5 : other used codes are 00L-49L, 0L0-9L9 and L00-L99.

note 6 :

Red ring with a three alpha-numeric code, starting letter "I".

note 1 : 

Yellow ring with a three alpha-numeric code, starting letter "I".

note 1 : used codes are : I00-I99, IAA-IZZ, IA0-IZ9, I0A-I9Z.

note 2 :

Red ring with a white three alpha code, starting letter "Y".

note 1 : used codes are YAA-YZZ.

note 2 :

Light-green ring with a white three alpha code, starting letter "Y".

note 1 : used codes are YAA-YZZ.

note 2 :

Dark-green ring with a white three alpha code, starting letter "Y".

note 1 : used codes are YAA-YZZ.

note 2 : 

Blue ring with a white three alpha code, starting letter "Y".

note 1 : used codes are YAA-YZZ.

note 2 : 

Orange ring with a three alpha code, starting letter "Y".

note 1 : used codes are YAA-YZZ.

note 2 : 

Orange ring with a black three numeric code.

note 1 :