IJmuiden Project - Fred Cottaar, José Verbeek, Maarten van Kleinwee & Mars Muusse

(last update: January 01, 2023)

Lesser Black-backed Gull (graellsii) Y.CZU 1CY, June 2019 - August 2019, IJmuiden, the Netherlands. Picture: Mars Muusse & Maarten van Kleinwee.

Ringed as pullus in breeding season 2019 at Forteiland, IJmuiden. Ringed by Fred Cottaar ringing team.
Mother is g-YAVL, sibling is g-YCZV. Sex determined by NIOZ based on feather sample (Roos Kentie).

below: Lesser Black-backed Gull (graellsii) Y.CZU 1CY, August 07 2019, IJmuiden, the Netherlands. Picture: Mars Muusse.

below: Lesser Black-backed Gull (graellsii) Y.CZU 1CY, July 05 2019, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.

With sibling g-YCZV.

below: Lesser Black-backed Gull (graellsii) Y.CZU 1CY, July 05 2019, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.

Aluminium and color ring removed, metal ring fitted: NLA 5.540.048.

below: Lesser Black-backed Gull (graellsii) Y.CZU 1CY, June 24 2019, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.

Shelter created out of bricks. With sibling Red/Arnhem 5453366. Will be ringed g-YCZU later in season (see above).

below: Lesser Black-backed Gull (graellsii) Y.CZU 1CY, June 14 2019, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.

Shelter created out of bricks. With sibling Red/Arnhem 5453366. Will be ringed g-YCZU later in season (see above).

Life history until August 2019:

YCZU 5910 Geringd 2019 7 15 622 5540048 166 Forteilandkolonie IJmuiden, duintjes zuid NL 52.46 4.58 Fred Cottaar J P Ringed as chick of YAVL (Loggerbird), sibbling of YCZV, metal ringed 5 July 2019
YCZU 5910 Gezien 2019 7 19 622 5540048 166 Forteilandkolonie IJmuiden, duintjes zuid NL 52.46 4.58 Fred Cottaar J P with YCZV and mother YAVL
YCZU 5910 Gezien 2019 7 21 619 5540048 1417 Forteilandkolonie IJmuiden, zuidwestvlak NL 52.46 4.58 Maarten van Kleinwee J P With YCZV.
YCZU 5910 Gezien 2019 7 22 622 5540048 9994 Forteilandkolonie IJmuiden, duintjes zuid NL 52.46 4.58 IJmuiden meeuwen team J P
YCZU 5910 Gezien 2019 7 26 622 5540048 166 Forteilandkolonie IJmuiden, duintjes zuid NL 52.46 4.58 Fred Cottaar J P in territory YAVL, with YCZV
YCZU 5910 Gezien 2019 7 26 622 5540048 166 Forteilandkolonie IJmuiden, duintjes zuid NL 52.46 4.58 Fred Cottaar J P in territory YAVL, with YCZV
YCZU 5910 Gezien 2019 7 29 622 5540048 166 Forteilandkolonie IJmuiden, duintjes zuid NL 52.46 4.58 Fred Cottaar J P in territory YAVL, with YCZV
YCZU 5910 Gezien 2019 7 29 622 5540048 166 Forteilandkolonie IJmuiden, duintjes zuid NL 52.46 4.58 Fred Cottaar J P in territory YAVL, with YCZV
YCZU 5910 Gezien 2019 8 3 1661 5540048 1417 Wijk aan Zee; Strand paal 52 NL 52.48 4.57 Maarten van Kleinwee J 1 Seen at 07:10hrs and 10:50hrs.
YCZU 5910 Gezien 2019 8 7 610 5540048 1272 strand IJmuiden NL 52.44 4.55 Mars Muusse J 1 Photo provided, in flight
YCZU 5910 Gezien 2019 8 17 622 5540048 166 Forteilandkolonie IJmuiden, duintjes zuid NL 52.46 4.58 Fred Cottaar J 1 in territory parents, dark brown plumage !