| WI - Cormorant Research Group | The Bulletin - No. 4, June 2000 | Original papers | |
COLOURS AND CODES USED IN DANISH CORMORANT COLONIES
Thomas Bregnballe & Jens Gregersen
Danish rings are always with 3 numbers or letters or a combination (though 3 letters have not been used, so far). The only exceptions are the few birds still alive with the numbers 1-99. The vast majority of Danish rings resighted nowadays are white or green.
| Colour | Period | Leg | Inscription | Code |
| yellow | 1979-1981 | right or left | black | 3 numbers |
| blue | 1977-1988 | right or left | white | 3 numbers or 2 numbers + 1 letter |
| red | 1982-1988 + 2000 |
right or left | white | 3 numbers or 2 numbers + 1 letter |
| black | 1983-1991 + 2000 |
right or left | white | 3 numbers or 2 numbers + 1 letter or 1 number + 2 letters |
| green | 1983- | right or left | white | 3 numbers or 2 numbers + 1 letter or 1 number + 2 letters; a few have a small green or blue ring on the other leg |
| white | 1981- | right or left | black | 3 numbers or 2 numbers + 1 letter or 1 number + 2 letters |
Thomas Bregnballe & Jens Gregersen
Information on resightings should be send by letter to NERI, Att. T. Bregnballe, Kalø, Grenåvej 12, 8410 Rønde, Denmark, or by e-mail to tb@dmu.dk. Observers will receive a reply by letter with ringing data and former resightings of the individuals observed.