IJmuiden Project - Fred Cottaar, José Verbeek, Maarten van Kleinwee & Mars Muusse
(last update: January 01, 2023)
| back to INDEX |
| Y.CFB |
| NLA 5.506.619 |
| Lesser B-backed Gull |
| sex?, pullus |
| ringed: July 04 2016 |
| Forteiland IJmuiden, - |
| Relations: |
| - |
| - |
Lesser Black-backed Gull (graellsii) Y.CFB 1CY-2CY, July 2016 - June 2017, the Netherlands. Picture: Maarten van Kleinwee, Mars Muusse & Ruud Altenburg.
Ringed as pullus in breeding season 2016 at Forteiland, IJmuiden. Ringed by Fred Cottaar ringing team.
below: Lesser Black-backed Gull (graellsii) Y.CFB 2CY, June 02 2017, Heemskerk, the Netherlands. Picture: Mars Muusse.
Post juvenile moult in left wing: TT1-3 replaced, GC 2-3, MC (1?)2-8. Complete moult now started, muddying an estimation of the full extent of the post-juvenile moult.
below: Lesser Black-backed Gull (graellsii) Y.CFB 2CY, May 29 2017, Heemskerk, the Netherlands.
P1-P2 missing, secondaries and primaries juvenile. New tail-feathers R1. Several inner coverts replaced last winter in the post-juvenile moult.
below: Lesser Black-backed Gull (graellsii) Y.CFB 2CY, May 21 2017, Heemskerk, the Netherlands. Picture: Ruud Altenburg.
below: Lesser Black-backed Gull (graellsii) Y.CFB 1CY, July 04 2016, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.
