Mysterious cormorants - untraced colour-ringed cormorants

WI - Cormorant Research Group

Colour-ringing

updated on 24-04-2008

List of mysterious colour-ringed cormorants
Great cormorant (P. carbo) and Shag (P. aristotelis)

Based on a former Dirk Raes database,
request for information sent to the cr-project coordinator or to the webmaster or posted to the colour-ring birding group

Country of resighthings
Belgium - Denmark - France - Germany - Italy - Spain - Poland - The Netherlands - UK

Left tarsus	Right tarsus	Locality and date	Observer	Note	Reporto to
				all solved -:) no new data at the moment

Left tarsus	Right tarsus	Locality and date	Observer	Note	Reporto to
metal ring		Årslev Engsø, Jylland 08 April 2008	M. J. Hansen	Adult bird well seen by the observer, no doubt about the code; already checked that is not from UK	jacobsterup@mail.dk

Left tarsus	Right tarsus	Locality and date	Observer	Note	Reporto to
	(not reported)	Kembs 68/F - 47°41N 7°31E 16 Oct. 2003	E. Schmitt	observed by telescope posted on 06 Nov. 2003 this bird is not from Germany, Denmark or The Netherlands	Cr-project coordinator
		France October 2002	Alain Fossé LPO Anjou Montreuil-Juigné France	posted on Oct. 2002	Cr-project coordinator
		Corsica, 1998			Cr-project coordinator
		Rhine, Plobsheim, Bas-Rhin, east France, (48.25N, -7.44E) 28 January 1990 5 December 1992	Christian Dronneau LPO Alsace Strasbourg		Cr-project coordinator
		Lac de Maine Maine-et-Loire, France (47:28 N 0:35 W) 26th Nov 1998	Olivier Loir	the colours of the ring & code were not recorded	Cr-project coordinator
		France 1995 France 1998			Cr-project coordinator

Left tarsus	Right tarsus	Locality and date	Observer	Note	Reporto to
				all solved -:) no new data at the moment

If not otherway stated, please, report resightings to the Instituto Nationale Fauna Selvatica (INFS)

Left tarsus	Right tarsus	Locality and date	Observer	Note	Reporto to
	?	19980121, 19980213, 19980302, 19980304, etc ...		position of the ring not available or not reported	Instituto Nationale Fauna Selvatica (INFS)
	?	19950102		position of the ring not available or not reported	INFS
	?	19960326		position of the ring not available or not reported	INFS
	?	13 June 2001		position of the ring not available or not reported Adult bird with very dark blue ring (looks almost black); colony on Vorsø, Denmark	INFS
	?	19950220		position of the ring not available or not reported May be a Danish bird; colour ring should be BLACK instead of blue. Any code letter_number_letter used for Blue rings	INFS
	?	5 March 1995 2 and 4 March 1998		position of the ring not available or not reported May be a Danish bird; colour ring should be BLACK instead of blue. No letter_number_letter code used with Blue rings	INFS
	?	28 February 1997		position of the ring not available or not reported	INFS
	?	14 January 1997		position of the ring not available or not reported	INFS
	?	11 December 1994		position of the ring not available or not reported; perhaps ringed in Netherlands, but "1" has not been used	INFS
	?	2 February 1995		position of the ring not available or not reported perhaps ringed in Netherlands, but figure 1 not used	INFS
	?	26 January 1998		position of the ring not available or not reported	INFS
	?	5 February 1998		position of the ring not available or not reported	INFS
	?	14 January 1996		position of the ring not available or not reported	INFS
	?	2 February 1998		position of the ring not available or not reported	INFS
	?	4 October 1997		position of the ring not available or not reported	INFS
	?	19890120, 19890401 etc		position of the ring not available or not reported	INFS
	?	19911212, 19930318		position of the ring not available or not reported	INFS
	?	19921212, 19921214 etc		position of the ring not available or not reported	INFS
	?	20000116		position of the ring not available or not reported	INFS
	?	19911120		position of the ring not available or not reported ringed in Netherlands ? probably a bar was not recorded (S / J)	INFS

Left tarsus	Right tarsus	Locality and date	Observer	Note	Reporto to
				all solved -:) no new data at the moment

Left tarsus	Right tarsus	Locality and date	Observer	Note	Reporto to
none ?		Gran Canaria between 29.1 and 8.2.2005; other observations in 2006	several observers	The bird was wearing only a colour-ringed at the right foot, a metal ring could not be seen. The ring at first seemed black but later resulted to be BLUE - see the picture	Cr-project coordinator
		San Andres dam, N Spain 03.04.97	César Álvarez Laó	left leg: RED ring with upper white band over YELLOW ring; right leg: white (?) ring over a RED ring	Cr-project coordinator
?		La Granda dam, N Spain 18.10.97	César Álvarez Laó	ORANGE ring with or without any code ?	Cr-project coordinator
		Los Gavieros island, Coaña, N Spain 29.03.98,	Manuel Antonio Fernández Pajuel		Cr-project coordinator
		Navia estuary, N Spain 17.01.00	Manuel Antonio Fernández Pajuel		Cr-project coordinator

The Netherlands

Colour ring	Code reading from	Locality and date	Observer	Note	Reporto to
	reading bottom-up	Netherlands	not reported	WHITE colour ring with black letters with a four digit black inscription RTSB	Cr-project coordinator

Left wing	Right wing	Locality and date	Observer	Note	Reporto to
green	red	Schinkelbos nature reserve (Amsterdam) 29 January 2002	Dirk Kars The Netherlands	The bird wore two wintags, one on each wing, with no inscription. No information on colour marking project involving the use of wingtags has so far been reported for the Great Cormorant.	Cr-project coordinator

Left tarsus	Right tarsus	Locality and date	Observer	Note	Reporto to
		Priory Country Park, Bedford, UK 14/01/02	David Kramer	colour-ring should be BROWN but any known project use this colour; juvenile bird	stuart.newson@bto.org
		Gartmorn Dam, nr Alloa, Clackmannanshire, Scotland 14/03/02, 26/03/02, 19/10/02, 16/11/02, 24/12/02	Andre Thiel	left or right tarsus position not reported	stuart.newson@bto.org