WI - Cormorant Research Group Colour-ringing last updated on 16-12-2023

GREAT CORMORANT
Colour-ringing Projects in Europe and Middle East

ARRANGED BY COUNTRY

Belgium - Czech Republic - Denmark - Estonia - Finland - France - Germany - Greece - Hungary - Italy - Iran - Ireland - Jersey - Latvia - Lithuania - Mongolia - The Netherlands - Norway - Poland - Romania - Russia - Spain - Sweden - Switzerland - Ukraine - United Kingdom

Belgium

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Note Project
leaders		 Ringing
scheme
Green White
or
 3 R 352
in 5 colonies		 2005-2012


This project is a collaboration between Aves (http://www.aves.be/index.php?id=1391), DEMNA (Département d'étude du milieu naturel et agricole - Wallonia) and INBO (Instituut voor natuur- en bosonderzoek - Flanders).

to report an observation: https://submit.cr-birding.org/projects/36/

 Jérémy Simar and Koen Devos Belgium

Czech Republic

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Note Project
leaders		 Ringing
scheme
Blue White 3 L (1998)
R (1997-1999)		 84 1996-99 Combinations start always with letter A; 2nd and 3rd letters may be: A, C, E, H, J, K, L, N, P, R, S, T, U, V, Y, P. Musil
R. Martincová		 Czech
Republic
Blue White 2 R 30 2000 Combinations start with letter A or B; 2nd letter may be: A, B, C, D, E, H, I, J, K, O, P, S, T, U, X, Z. P. Musil
R. Martincová		 Czech
Republic

Denmark

See also Old Danish combinations (1980s and early 1990s projects) from which there are no longer reports of birds

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years

Note

 Project
leaders		 Ringing
scheme
Black White 3 L, R 157 2000   T. Bregnballe Denmark
Green White 3 L / R
1,980		 1991, 1996-2004 A few birds (ringed in 1996) have a small GREEN or BLUE plastic ring above the metal ring on the other leg.
These "helping" rings were used in 1996 on Mĺgeřerne (blue rings) and the Stavns Fjord colonies (green rings)		 T. Bregnballe
Jacob Sterup		 Denmark
Green White 3 L, R 1,971 1986-1991, 1996, 2003 A few birds (ringed in 1996) have a small GREEN or BLUE plastic ring above the metal ring on the other leg.
These "helping" rings were used in 1996 on Mĺgeřerne (blue rings) and the Stavns Fjord colonies (green rings)		 T. Bregnballe
Jacob Sterup		 Denmark
Green White 3 L, R 1,343 1997-1999   T. Bregnballe
Jacob Sterup		 Denmark
Green White 3 L, R 1,242 1999-2000   T. Bregnballe
Jacob Sterup		 Denmark
Green White

3 L, R 1,245 2000-2002   T. Bregnballe
Jacob Sterup		 Denmark
Green White 3 L, (R only few)
1,595
2001-2006		   T. Bregnballe
Jacob Sterup		 Denmark
Red White 3 L, R 1,110 1986-1988
2000		   T. Bregnballe
Jacob Sterup		 Denmark
Red White 3 L 1,712
2003-2004
(2005 few)

Codes used in Denmark were:
AA1-PH7 in 2003
PH8-VJ0 in 2004 (2005)

 T. Bregnballe
Jacob Sterup		 Denmark
Red White 3 L 113 2006

2008

1AA - 3AT in 2006

0-9 KA - 0-9 KV (140)
0-9 LA - 0-9 LV (140)
0-9 NA - 0-9 NV (128)
0-9 PA - 0-9 PV (140)

 T. Bregnballe
Jacob Sterup		 Denmark

Red

White

3

?

?

2012-2014

code used from 2012 on ...

T. Bregnballe
Jacob Sterup

Denmark
White Black
or

or
 3 L, R 4503 1988-97   T. Bregnballe
Jacob Sterup		 Denmark
White Black 3 L, R 1,721 1997-2002   T. Bregnballe
Jacob Sterup		 Denmark
White Black 3 L, R 118 2002-2003 Combinations ranging from 1AA-0AT have been used so far T. Bregnballe
Jacob Sterup		 Denmark

Estonia

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years

Note

 Project
leaders		 Ringing
scheme
Green White
...

...
 3 R   2007
Project carried out the
Intercafe Cost Action 635

Combinations used are:
from V P A - V P Z
to V V A - V V Z
and
from W A A to W E N

 S. van Rijn Estonia

BLU

White

3

R

>3,258

2009-2023


Combinations used are:
AA? - AZ?; BA? - BZ?; CA? - CZ?; EA? - EM?; ET? - EZ?; FA? - FZ?; HA? - HY?; JA?-JY?; KC?, where ? can be: A, B, C, E, F, H, I, J, K, L, M, N, O, P, R, S, T, U, V, W, X, Y, Z

Estonian Ringing Centre
matsalu@envir.ee

Estonia

France

Grand-Lieu scheme

Style Ps/Ps or Ps/Ps/Ps plus M/Ps
A combination of two or three small plain rings (without inscription) on the same leg  (right or left) and of a metal ring, or
one or two small colour ring plus a metal ring, on the other leg
Used colours Style Leg No.
ringed		 Years Project
leaders		 Ringing
scheme


Ps/Ps
+
Ps/M		 L, R 595 from 1989 to 1993 L. Marion France


Ps/Ps/Ps
+
M		 L, R 409 1996, 2000, 2003 L. Marion France



Ps/Ps
+
Ps/Ps/ M		 L, R 1400 from 1992 to 1995
from 1997 to 2002
2004		 L. Marion France



Ps/Ps/Ps
+
Ps/ M		 L, R 629 2005
from 2007 to 2012		 L. Marion France

Normandy islands

LEFT leg RIGHT leg  
Ring colours Ring style Ring colours Ring style No.
ringed		 Years Project
leader		 Ringing
scheme





M
+
Ps
+
Ps



Ps
+
2cb		   2002
2003		 G. Debout France





M
+
Ps
+
Ps




or


 Ps
+
2cb

or

Ps
+
3cb

   2002
2013		 G. Debout France

Colour-ringing is carried out in two P. c. carbo norman colonies. Ring combinations include: on the left leg a metal ring of the Museum of Paris plus a single colour-ring; on the right leg a colour-ring plus an inscripted white or blue ring (depending on the colony). Inscription include a letter (C or M depending on the colony), a central vertical band, and a number (2, 3 and so on depending on the year of ringing).

Finland

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years

Note

 Project
leaders		 Ringing
scheme
White Black 4 ? 50+ 1983-91
2000		   P.T. Rusanen Finland

Green

White


...

...

3

R

  

2007 *

Combinations used are:
from V W A - V W Z
to V Z A - V Z Z
and
W J A - W J Z

Finnish Ringing Centre

Finland

* Project carried out the Intercafe Cost Action 635

Germany

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Note Project
leaders		 Ringing
scheme
Red White 3 L, R ? 1989-91   T. Menke Germany
Red White 3 ? ? ?   T. Menke Germany
Yellow Black 3 ? ? ? The inscription numbers are indicating the year of birth and the breeding colony the birds stem from but not the different individuals themselves. A. Siefke Germany
Yellow Black 3 L, R 500 1985-91   U. Koeppen Germany
Yellow Black

4

   1000 2013-2018

Code are: A000...A999
see an example

Ingo Ludwichowski
(NABU-Wallnau)

Germany
Yellow Black

4

   150 2019-2021

Code are: F001...F999
Results of ringing and resighting and webcam looking at the colony in Wallnau

Ingo Ludwichowski
(NABU-Wallnau)

Germany
Yellow Black

4

   150 2022-2024

Code are: H001...H999

Ingo Ludwichowski
(NABU-Wallnau)

Germany
Yellow Black

L001...L999

4

   150 2024-...

Code are: L001...L999

Ingo Ludwichowski
(NABU-Wallnau)

Germany
Black White 2 cb L, R ? 1988-91   T. Menke Germany
Red White 2 cb L, R ? 1988-91   T. Menke Germany
White Red 2 dcb ? ? 1988-91   T. Menke Germany
Red White 1 b ? ? ?   T. Menke Germany
Blue White 3   996

2009-2010

* see project info below and also this leaflet

code used in 2009-2010 are 001 - 999

 Hiddensee Ringing scheme
http://www.lung.mv-regierung.de/beringung		 Germany

Blue

White

3

    

2010-2013

codes used in 2010-2012
and 01A-97A ... 01-97T series

in 2013 will be used the
01U-97U, ... V-, W-, X-, Y-, Z-series

Hiddensee Ringing scheme
http://www.lung.mv-regierung.de/beringung

Germany

Blue

White

3

    

2014

from 2014 code will be:
1A1-1A9,1B1-1B9 and so on

Hiddensee Ringing scheme
http://www.lung.mv-regierung.de/beringung

Germany

* Project info: from 2009 on, nestlings and adults at breeding sites exclusively, in federal states of:
- Brandenburg: 150- 200 Ind./year (max. 1.000 Ind./5 years),
- Saxony: 150 - 200 Ind. / year (max. 1.000 Ind. / 5 years),
- Saxony-Anhalt: 100 – 150 BP / year (max. 700 / 5 years),
- Mecklenburg-Vorpommern : 150 – 200 Ind. / year (max. 1.000 Ind. / 5 years).

Greece

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Note Project
leaders		 Ringing
scheme

White

Black

3

    

2012->

New project promoted by the Evros Delta Management Agency
starting in spring 2012

Yanis Fakriadis

Greece

Hungary

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Note Project
leaders
(coordinator)		 Ringing
scheme

White

Black

3

    

2016->

New project starting in spring 2016
codes range from AAA to BZZ

Peter Szinai
szinai@freemail.hu

Hungary

Italy

Send resightings at the Italian Ringing Centre at the Istituto Superiore per la Protezione e la Ricerca Ambientale (ISPRA ex INFS)

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Project
leaders		 Ringing
scheme
Orange Black 4 L, R 547
>100
< 20		 Po Delta 1997-2007
Lombardia 2005-2007
Friuli Venezia Giulia 2010		 S. Volponi
A. Boto
B. Cimador		 Italy

Iran

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Project
leaders		 Ringing
scheme
Yellow Black 2 D ca. 50 2003 A. Barati Iran

 

Ireland

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Project notes & leaders Ringing
scheme

White

Red


or

or

3

L

374

2011-20xx

Project carried on in Ireland - White ring with red (3 character) vertical codes (left Leg) and a BTO metal ring on the right leg.
Combinations used for the project carrid on in Ireland are a mix of letters and numbers but all rings used in Ireland start with a letter from A to L
First birds ringed in June 2011 on the east coast still running in 2017
Tom Kealy - kealyfab@gmail.com

UK

Project carried on in Ireland - White ring with red (3 character) vertical codes (left Leg) starting with letters A to L followed with either 2 letter or 2 numbers and BTO metal ring on the right leg. First birds ringed in June 2011 on the east coast

Jersey

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Project
leaders		 Ringing
scheme
Black White 2 ? - 2012
New project to be commenced in the Channel Islands
in the 2012 breeding season		 John Horton - Alderney Bird Observatory
formerly P. K. Veron / GuerneseyGulls		 Jersey

Latvia

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Project
leaders		 Ringing
scheme

Blue

White

 3 ? 2013 combinations used are:
A01, A02 ...A99
C01, C02 ... C99; .....		 
Karlis Millers

Latvia

 

Lithuania

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Project
leaders		 Ringing
scheme
White
+White		 Black
+
Black
1/1 R 66 2005 D. Mindaugas Lithuania
Green
+
White		 White
+
White
1/1 R 66 2005-2008 D. Mindaugas Lithuania
Red
+
White		 White
+
Black
1/1 R 66 2005-2008 D. Mindaugas Lithuania

Red

White

4

R

  

2018

Lithuanian Bird Ringing Centre
likcentras@gmail.com

Lithuania

* Lithuanian projects:
code used for the below ring (A): A, B, C
code used for the upper ring (B): A, B, C, E, F, H, I, L, J, K, L, M, N, O, P, R, S, T, U, V, W, X, Y

Mongolia

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Project
leaders		 Ringing
scheme
Yellow Black 4   ca. 1000 2017, 2020 Prof. M. Stubbe
annegret.stubbe@zoologie.uni-halle.de
Christof.Herrmann
Christof.Herrmann@lung.mv-regierung.de 		Germany

Almost 1,000 cormorants were ringed in Mongolia in 2017 with yellow rings with a numerical codes (1001 - 2000). In 2020 new ringing will be carried on using codes from 2000-3000.

Netherlands

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Project
leaders		 Ringing
scheme
Green White
or
 2 ? ca. 250 1997-99 S. van Rijn Netherlands
Green White 2 cb R ca. 450 1993-2001 S. van Rijn Netherlands
Green White
or
 2 cb ? ca. 250 1999-2001 S. van Rijn Netherlands
Green White 2 ? ? 2015 S. van Rijn Netherlands  
LIME
(pale green)		 Black



2     2007- S. van Rijn Netherlands
photo by: Jean-François Le Bihan
http://jeanfrancois.lebihan.free.fr
Red White 2 L/R > 500
1996-97 (left tarsus) / 2016-2018 (right tarsus)		 S. van Rijn Netherlands
Red White
or
 2 L ca. 300 1998-99 S. van Rijn Netherlands
Red White 2 cb L ca. 400 1999-2000 S. van Rijn Netherlands
Red White
or
 2 cb L ca. 300 2001-2002 S. van Rijn Netherlands

see a sample
Red White 2 R   The project will start in 2023 at Het Vogelmeer, Nationaal Park Zuid-Kennemerland, Bloemendaal, Noord-Holland, Nederland. 
The following codes will be used 2A-2Z and 4A-4Z		 Erik Maassen
erikijmuiden @ hotmail.com		 Netherlands
White Black 2 L 200 1983-84 S. van Rijn Netherlands
White Black 2 cb L 200 1987-88 S. van Rijn Netherlands
White Black
or

or

or
 2


or


2 cb		 L ca. 500 1991-95 S. van Rijn Netherlands
Yellow Black 2 R 200 1985-86 S. van Rijn Netherlands
Yellow Black 2 cb R 200 1989-90 S. van Rijn Netherlands
Yellow Black
or

or

or
 2


or


2 cb		 R ca. 500 1991-95 S. van Rijn Netherlands
Orange Black 2 dcb     2010 -
(codes range from A || A to Z || Z)		 S. van Rijn Netherlands

Norway

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years

Note

 Project
leader/coordinator		 Ringing
scheme
White Black
or
 4     2022- White rings with black inscription, starting with J followed by three letters / numbers. Alphanumeric codes codes Jxxx or Jnnn
ring reporting adress www.ringmerking.no, post@ringmerking.no		 Morten Helberg morten.helberg@birdlife.no Norway
Black White 3 L, R 345 2008-2014


Colour ringing carried out in four colonies.
Letter so far used at the beginning of the code: A, C, E, K (other may be used in future)
Letters used in second and third positions are:
A, C, E, H, J, K, L, N, P, R, T, U, V, X, Y, Z

 Project leader Morten Helberg
morten.helberg@ibv.uio.no

report to
www.ringmerking.no/cr		 Norway
Black White
or

or
 2 ? (267) 2001-2002

Project of the SE Norwegian cormorant ringing group "Ĺge Sten Fredriksen" intersting about 288 individuals. Used codes were: 00 -> 90, 09 -> 99, A1 -> Z1, A9 -> Z9, 1A -> 1B, 9A -> 9B. Codes that can be read from down-up and up-down, making confusion, have been excluded (e.g. 09, 06, 90, 99)

 Ĺ.S. Fredriksen Norway
Red White 3 ? 100 2003

Codes with letters CL, CN, CP, CR, CS, CT, CU, CV, EA and EC used in Norway.
Note that other letter were used in Denmark

 Ĺ.S. Fredriksen Norway
Red White 3 ? 279 2004

Combinations ranging from A1A-C0V were used in 2004 and will continue from E1A in 2005

 Ĺ.S. Fredriksen Norway

Poland

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Note Project
leaders		 Ringing
scheme
Green White
or

or

or
 3 (a) L 96
101
96
112
61
28
85
82
17+47
23
17
261		 1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004		 Combinations used in Poland begin with: FA, FB, FC, FF, FH, FJ (in 1993); FL, FN, FP, FR, FS, FT (in 1994); FU, FV, FX, FZ, HA, HB (in 1995); HC, HF, HH, HJ, HL, HN, HP (in 1996); HR, HS, HT (in 1997 ); HU, HV, HT (in 1998); NA, NB, NC, NE, NF (in 1999); NN, NP, NL, NJ, NH (in 2000); NR, NS, NT, NZ (in 2001); RAA-RBH, RBN, REC (in 2002); RB- and RC- (in 2003); RBx ... RVx (in 2004). J. Jezierski

S. Bzoma

 Poland

Green

White

     

1993-1995

  

J. Jezierski

Poland

Green

White

     

1995-1998

  

J. Jezierski

Poland

Green

White

     

1999-2001, 2004

  

S. Bzoma - J. Jezierski

Poland

Green

White

     

2002-2008

  

S. Bzoma - K. Kaczmarek

Poland

Green

White

     

2005-2008

  

K. Kaczmarek

Poland

Green

White

     

2006-2009

 

S. Bzoma - J. Jezierski - G. Kiljan - K. Kaczmarek

Poland

Green

White

     

2007-2008

 
with the exclusion of codes:
from V W A to VZA used in Finland 
and
from VPA and V V A used in Estonia 

see below

K. Kaczmarek

Poland

Yellow

Black

3

?

165

2008-2009

 

(S. Bzoma)

Poland

Yellow

Black

3

?

?

2011

 
three letters, combinatins used: 
from AFH to AUA

Jacek.Jezierski

Poland

Yellow

Black

3

L

239

2009-2012 

 three letters, first could be: 
A or B or E or F (later on also or H or J or K)

(S. Bzoma)

Poland
White Black 3 L, R 196 1983-85   P. Mayewski
(S. Bzoma)		 Poland

Romania

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Note Project
leaders		 Ringing
scheme
Green White 3 ?   2015 Mid and last letters range between A and Z. Ioana Damoc (Cobzaru)
ioana.cobzaru@ibiol.ro
ioana402@yahoo.com 		Romania
Green White 3 ?   2015 " " Romania
Green White 3 ?   2015-> " " Romania
Green White
or
 3 ? ? 2013 " " Romania
Green White 3 ?   2015-> " " Romania
Green White 3 ?   2015-> " " Romania

Note: some ringing with GREEN colour rings and code starting with "A" may have been carried out in late 1990s.

Russia (Gulf of Finland)

 

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Note Project
leaders		 Ringing
scheme

Green

White


...

3

R

  

2007 *

Combinations used are:
from W E P - W E Z
to W H A - W H Z

S. van Rijn
A. Gaginskaya

Russia

* Project carried out the Intercafe Cost Action 635

Spain

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Note Project
leaders		 Ringing
scheme
Yellow Black 4   2007 to 08/03/2008: 64 2007-2008 (a) the project is aimed to
study movement of ADULT birds		 J. Aymerich
(Group d'Anellament de Celldetenes - Osona)		 Spain
Yellow Black 4 L   2016- The project involve ringing nestlings using code like: SRAA-SRZZ, SSAA-SSZZ, STAA-STZZ, SUAA-SUZZ, SVAA-SVZZ, SWAA-SWZZ, SXAA-SXZZ Dońana Biological Station Bird Ringing Office
http://anillamiento.ebd.csic.es
e-mail: anillamiento@ebd.csic.es		 Spain

The first letter is always S, followed by a combinationof the of the following letters: A, B, C, D, F, H, J, K, L, M, N, P, S, T, V, X, Z

Sweden

Ring
colour		 Style Leg No.
ringed		 Years Project
leaders		 Ringing
scheme
Ps L 50 1980 L. Linden Sweden
Ps L 195 1981-85 L. Linden Sweden
? Ps ? ? 1986-91 L. Linden Sweden

 

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Note Project
leaders		 Ringing
scheme
Blue / White white / blue 2
bicolor		   50
78		 2013
2014		   Matti Ĺhlund, matti.ahlund@telia.com
Tommy Järĺs, birdcenter@swipnet.se		 Sweden

Switzerland

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Note Project
leaders		 Ringing
scheme
LIME
(pale green)		 Black 3 left 840 2006-2009 code 000 - 997
example
(see also the Dutch example)		 M. Antoniazza

report to the Swiss Ornithological Institute, CH-6204 Sempach ring@vogelwarte.ch		 Switzerland
Black White 3   784 2010-2012


The colour-ring project was stopped because in 2013 all cormorants moved from the islands to nest in nearby trees.

** see also Denmark project date 1983/88

 report to the Swiss Ornithological Institute, CH-6204 Sempach ring@vogelwarte.ch Switzerland

Ukraine

Ring
colour		 Inscription
colour		 Style Type Leg No.
ringed		 Years Project
leaders		 Ringing
scheme
mauve Pink Black 3 L 1500 1999 (V. Siochin)
N. Baccetti		 (Ukaine)
Italy

United Kingdom

See also the Old UK combinations (1980s and eraly 1990s projects) from which there are no longer reports of birds

Ring colour Inscription
colour		 Style Type Leg No.
ringed		 Years Note Project
leaders		 Ringing
scheme
Green White 3 ? 50 / year 2006

Project on Puffin Island, Wales.
Combinations used:
first CAA ... CZZ

Sara Bone
puffin.island.cormorants@googlemail.com		 UK
Green White
or
 3 ? 50 / year 2001 - 10 yrs project at Denny Island. Combinations used: first PAA ... PZZ then SAA ... SZZ Richard Clarke
chykembro2@aol.com		 UK
Green White 3 ? 50 / year 2015

Project on Puffin Island, Wales.Combinations used:
first ZAA ... ZZZ

Stephen Dodd sg.dodd@yahoo.com
puffin.island.cormorants@googlemail.com		 UK

Green

White

3

  

50 / year

2023 -

Project on Puffin Island, Wales.
Codes assigned to the project 000-499

Stephen Dodd sg.dodd@yahoo.com
puffin.island.cormorants@googlemail.com

 UK  
White Green 3 ? ? 1998 see here some results Raymond Duncan UK

White

Red


or

3

?

  

2011

The combinations used are a mix of letters and numbers but all rings start with one of the following letters:
N, P, R, S, T, U, X, Y or Z

Ringer: Manx Ringing Group
Location: Isle of Man, British Isles
Contact: Mark Fitzpatrick
Website: manxringinggroup.blogspot.co.uk
Email: manxrg@gmail.com
Details, pictures etc.: go to the website for details of projects and photos of some birds

UK
Yellow Black 3 L, R ? 2010 - Project of Rutland Water ringing group.
Combinations always use a combination of letters (starting at the end of the alphabet) and numbers		 Garry Barker
gbarker2@btinternet.com

UK
Yellow

Black

 3     2012

First letter is always a C

 Jim Lennon
jjlennon17@gmail.com		 UK
Blue White 2     2001- Combinations from NA to ZZ will be reserved for use in England colonies. BTO
colour.ringing@bto.org		 UK
Blue White
or

or
 2 ob L, R ? 1995-99
2000-02		   BTO
colour.ringing@bto.org		 UK
Blue White 2 cb L, R ? 1996-   BTO
colour.ringing@bto.org		 UK see an example
Orange Black 3 L   2021-...
ringing location: Cheshire, UK
used codes are: 001, 002 ... 300 .. 599		 Kieran Foster kieranfoster@yahoo.co.uk UK
Orange Black 3 ? ? 2001-   BTO
colour.ringing@bto.org		 UK

Orange

Black


3

L

  

2004 -

Project at Abberton Reservoir, near Colchester, Essex
codes start with C followed by 2 letters or by 1 letter and 1 number
latest series: David Dutton: CT or CV + letter or number

Chas Holt - chasholt99@gmail.com

UK
Orange Black

3 L.R 30 2013-2014

West Cornwall Ringing Group
code starts with T (e.g. TAA...TZZ)

markyjee@gmail.com

UK
Orange White 2 R
L		 ? 1992
1993		   BTO
colour.ringing@bto.org		 UK
Orange Black 2 L ? 1994
1996-1997		   BTO
colour.ringing@bto.org		 UK
Orange White 2 L some 1997   BTO
colour.ringing@bto.org		 UK
Orange Black 2 ob L ? 1998   BTO
colour.ringing@bto.org		 UK
Orange Black 2 cb L ? ?   BTO
colour.ringing@bto.org		 UK