CACHINNANS

1cy cachinnans, IJmuiden, Netherlands, 23 August 2008. Picture: Mars Muusse.

1cy cachinnans, August 2008, Riga, Latvia. Image: Chris Gibbins.

1cy cachinnans, IJmuiden, Netherlands, 23 August 2008. Picture: Mars Muusse.

ARMENICUS

1cy armenicus, Maagan Michael, Israel, 13 August 2011. Picture: Amir Ben Dov.

1cy armenicus, Maagan Michael, Israel, 18 August 2010. Picture: Amir Ben Dov.

MICHAHELLIS

1cy michahellis, Westkapelle, the Netherlands, 08 August 2008. Picture Ies Meulmeester. Ringing data: M008547 ringed as pullus on 15 May 2008 in Fanel, Neuchâtel, Switzerland.

1cy michahellis, IJmuiden, the Netherlands, 13 August 2010. Picture: Mars Muusse.

1cy michahellis, Roses, Spain, 25 July 2010. Picture Chris Gibbins.

1cy michahellis, Roses, Spain, 25 July 2010. Picture Chris Gibbins.

1cy michahellis, Amsterdam, the Netherlands, 11 August 2006. Picture: Mars Muusse.

1cy michahellis, Roses, Spain, 25 July 2010. Picture Chris Gibbins.

LUSITANIUS

1cy lusitanius, 05 August 2012, Malpica harbour - A Coruña, NW Spain. Picture: Antonio Gutiérrez.

1cy lusitanius, location, date, photographer.

ATLANTIS

1cy atlantis, August 27 2010, São Miguel, Azores Islands. Picture: Richard Lowe.

1cy atlantis, August 24 2010, São Miguel, Azores Islands. Picture: Richard Lowe.

GRAELLSII

1cy graellsii, IJmuiden, Netherlands, 20 August 2008. Picture: Mars Muusse. Ringing data: age pullus, 30 June 2008, Forteiland, IJmuiden, Netherlands (52°45'N 004°57'11"E).

1cy graellsii, Boulogne-sur-Mer, France, 27 July 2009. Picture Jean-Michel Sauvage. Ringing data: 407K ringed as pullus in July 2009 at Dunkerque, France.

1cy graellsii, Boulogne-sur-Mer, France, 22 August 2008. Picture Jean-Michel Sauvage. Ringing data: 824N ringed as pullus at Calais, France on 12 July 2008.

1cy graellsii, Texel, Netherlands, 16 August 2006. Picture: Mars Muusse.

1cy graellsii, Katwijk, Netherlands, 31 August 2011. Picture: Mars Muusse.

INTERMEDIUS

1cy intermedius, location, date, photographer.

1cy intermedius, Aarhus, Denmark, 15 August 2010. Picture Kent Olsen.

FUSCUS

1cy fuscus, August 15 2006, Tara dump (Tampere) SW Finland. Picture: Hannu Koskinen.

1cy fuscus, Stockholm, Sweden, 22 August 2009. Picture: Hans Larsson.

1cy fuscus, Stockholm, Sweden, 22 August 2009. Picture: Hans Larsson.

1cy fuscus, Stockholm, Sweden, 22 August 2009. Picture: Hans Larsson.

HEUGLINI

1cy heuglini, location, date, photographer.

1cy heuglini, location, date, photographer.

BARABENSIS

1cy barabensis, Kokalat, Qostanay Kazakhstan (49.47.32N 64.07.48E) 25 July 2010. Picture Ross Ahmed.

1cy barabensis, Kokalat, Qostanay Kazakhstan (49.47.32N 64.07.48E) 25 July 2010. Picture Ross Ahmed.

ARGENTEUS

1cy argenteus, IJmuiden, Netherlands, 20 August 2008. Picture: Mars Muusse. Ringing data: age pullus, 30 June 2008, Forteiland, IJmuiden, Netherlands (52°45'N 004°57'11"E).

1cy argenteus, Texel, Netherlands, 16 August 2006. Picture: Mars Muusse.

1cy argenteus, Katwijk, Netherlands, 31 August 2011. Picture: Mars Muusse.

ARGENTATUS

1cy argentatus, Simrishamn, Sweden, 19 August 2008. Picture: Hans Larsson.

1cy argentatus, Simrishamn, Sweden, 14 August 2010. Picture: Hans Larsson.

MARINUS

1cy marinus, Westkapelle, the Netherlands, 26 August 2010. Picture: Ies Meulmeester. Ringing data: ringed as pullus on 05 July 2010 in Stromsund, Mandal, Vest-Agder, Norway.

1cy marinus, Simrishamn, Sweden, 21 August 2007. Picture: Hans Larsson.

1cy marinus, Westkapelle, the Netherlands, 26 August 2010. Picture: Ies Meulmeester. Ringing data: ringed as pullus on 05 July 2010 in Stromsund, Mandal, Vest-Agder, Norway.