Sandwich Tern

Dark-blue ring with a white 3 alpha code, starting letter 'E'.
note 1 : rings are blue with white letters using the letters A, B, C, D, F, H, J, K, L, N, P, S, T, V, Z.
note 2 : this same scheme uses other colours but the first letter is always E.
note 3 : birds have been ringed in north-east Scotland by Grampian Ringing Group and we are very grateful for any sightings.
 

White ring with a black three alpha-numeric code and metal ring.

note 1 : Always letter 'N' on first position; followed by one letter and one numeric (e.g. NV2 or N2V); or one numeric and one numeric (e.g. N12); or one letter and one letter (e.g. NVT)

note 2 : Always letter ‘H’ on first position; followed by one letter and one numeric (e.g. HV2 or H2V); or one numeric and one numeric (e.g. H12)

note 3 : Always letter ‘J' on first position, followed by one numeric and one numeric (e.g. J12); or one letter and one numeric and a ‘.' [dot] in the code in a random position (either between first and second digit, or between second and third) (e.g. J.2T or J2.V)

note 4: The letter 'N' on various positions in the code, always starting with a numeric and followed by a letter (e.g. 2NC) or starting with numeric and numeric followed by N (e.g. 23N).

note 5 : a joint project of the Research Institute for Nature and Forest/INBO, Bureau Waardenburg and Ringgroup Delta. This project started in 2010 and each year (except in 2011) both adults and juveniles have been colourringed.

note 6 : we use colour-rings in order to gain information on migration, habitat use, juvenile dispersal, age of return and recruitment to the breeding colonies in the southwest of The Netherlands or beyond.

note 7 : used letters are : A, C, F, H, K, L, N, P, R, S, T, V, X, Z.

note 8 :

White ring with a black three alpha code and metal ring (on other tarsus) :
*starting letter "N" or "J" or "H" / number or letter / number or letter.
 

note 1 : Always letter 'N' on first position; followed by one letter and one numeric (e.g. NV2 or N2V); or one numeric and one numeric (e.g. N12); or one letter and one letter (e.g. NVT)

note 2 : Always letter ‘H’ on first position; followed by one letter and one numeric (e.g. HV2 or H2V); or one numeric and one numeric (e.g. H12)

note 3 : Always letter ‘J' on first position, followed by one numeric and one numeric (e.g. J12); or one letter and one numeric and a ‘.' [dot] in the code in a random position (either between first and second digit, or between second and third) (e.g. J.2T or J2.V); or one letter and one letter (e.g. JVT)

note 4: The letter 'N' on various positions in the code, always starting with a numeric and followed by a letter (e.g. 2NC) or starting with numeric and numeric followed by N (e.g. 23N).

note 5 : a joint project of the Research Institute for Nature and Forest/INBO, Bureau Waardenburg and Ringgroup Delta. This project started in 2010 and each year (except in 2011) both adults and juveniles have been colourringed.

note 6 : we use colour-rings in order to gain information on migration, habitat use, juvenile dispersal, age of return and recruitment to the breeding colonies in the southwest of The Netherlands or beyond.

note 7 : used letters are : A, C, F, H, K, L, N, P, R, S, T, V, X, Z.

note 8 :

Dark-blue ring with a white three alpha-code, starting letter 'A' (on left tarsus) and metal ring (on right tarsus). 

note 1 : used codes are AAA-AZZ.

note 2 : during 2013, some 169 birds have been ringed near Montpellier, FR.

note 3 : 

Combination of 3 c-rings and metal ring.

note 1 :

White ring with a black three alpha code -starting letter 'H'- (on left tibia or tarsus) and metal ring (on right tibia or tarsus).

note 1 : 240 birds ringed during 2012 in the Languedoc, France.

White ring with a black three alpha code -starting letter 'C'- (on left tibia or tarsus) and metal ring (on right tibia or tarsus).

note 1 : 16 birds ringed during 2012 in the Languedoc, France.

Dark blue ring with a white 3 alpha code (3 letters) and metal ring (on other tarsus).

note 1 : Always letter 'N' on first position; followed by one letter and one numeric (e.g. NV2 or N2V); or one numeric and one numeric (e.g. N12); or one letter and one letter (e.g. NVT)

note 2 : Always letter ‘H’ on first position; followed by one letter and one numeric (e.g. HV2 or H2V); or one numeric and one numeric (e.g. H12); or one letter and one letter (e.g. HVT)

note 3 : Always letter ‘J' on first position, followed by one numeric and one numeric (e.g. J12); or one letter and one numeric and a ‘.' [dot] in the code in a random position (either between first and second digit, or between second and third) (e.g. J.2T or J2.V); or one letter and one letter (e.g. JVT)

note 4 : a joint project of the Research Institute for Nature and Forest/INBO, Bureau Waardenburg and Ringgroup Delta. This project started in 2010 and each year (except in 2011) both adults and juveniles have been colourringed.

note 5 : we use colour-rings in order to gain information on migration, habitat use, juvenile dispersal, age of return and recruitment to the breeding colonies in the southwest of The Netherlands or beyond.

note 6 : used letters are : A, C, F, H, K, L, N, P, R, S, T, V, X, Z.

note 7 :

Yellow flag with a two alpha-numeric code.

note 1 : project starts during summer 2012. The aim is to study the sandwich terns that appear in the south western Sweden in late June and then spend the summer.

note 2 : report in Swedish : http://www2.nrm.se/rc/rc-formular-se.php

note 36 : 

Combination of a white 3 alpha code ring and a combination of two c-rings and metal ring. 

* 2010.
left leg tarsus : orange/dark-blue.
left leg tibia : nihil.
right leg tarsus : white ring with a black three alpha code (first letter A or B).
right leg tibia : metal. 

* 2010.
left leg tarsus : dark-green/red.
left leg tibia : nihil.
right leg tarsus : white ring with a black three alpha code (first letter A or B).
right leg tibia : metal ring. 

* 2011 :
left leg tarsus : white ring with a black three alpha code (first letter B or C).
left leg tibia : nihil.
right leg tarsus : white/metal.
right leg tibia : nihil.