Yellow-legged
Gull - Larus michahellis
(last update: October 08 2013)
Coordinators:
Delfín González
Gabriel Martín
Antonio Gutierrez
Amir Ben Dov
Mars Muusse
Yellow-legged Gull michahellis 2CY 171Z May-August 2003, Etaples, NW France (50.42N,1.34E).
2CY michahellis ringed white 171Z, hatched and ringed summer 2002 in S France.
| readings of michahellis 171Z. Bird ringed Lagune des Impériaux, Besson / Bouche-du-Rhone, France (43.29N 04.29E). | ||
| date | location | observer |
| 28.05.2002 | Besson, France (43.29N 04.27E). | ringed by ringer |
| 21-22.09.2002 | Etaples, France (50.31N 01.39E) | Bert-Jan Luijendijk, Mars & Theo Muusse |
| 03.10.2003 | Etaples, France (50.31N 01.39E) | Bert-Jan Luijendijk & Mars Muusse |
| 25-26.10.2002 | Etaples, France (50.31N 01.39E) | Mars & Theo Muusse |
| 13.04.2003 | Etaples, France (50.31N 01.39E) | Jean-Michel Sauvage & Elisabeth Muselet |
| 20.04.2003 | Etaples, France (50.31N 01.39E) | Jean-Michel Sauvage |
| 29.04-02.05.2003 | Etaples, France (50.31N 01.39E) | Bert-Jan Luijendijk, Mars & Theo Muusse |
| readings of michahellis 965X. Bird ringed Lagune des Impériaux, Besson / Bouche-du-Rhone, France (43.29N 04.29E). | ||
| date | location | observer |
| 28.05.2002 | Besson, France (43.29N 04.27E). | ringed by ringer |
| 24.07.2002 | Boulogne-sur-Mer, France (50.43N 01.37E) | Jean-Michel Sauvage |
| 25-26.10.2002 | Etaples, France (50.31N 01.39E) | Bert-Jan Luijendijk, Mars & Theo Muusse |
| 01-02.05.2003 | Etaples, France (50.31N 01.39E) | Bert-Jan Luijendijk, Mars & Theo Muusse |
By late June, the primary moult stage is
much delayed, with P8-P10 still juvenile and P5 fully grown. Such a
low moult score is more in line with 3CY michahellis.
In the bottom picture from May 01, 965X can be
seen together with white ringed 171Z, originating from the same
breeding colony. It misses the left foot and it shows a delayed
moult score with the complete wing and tail still juvenile. 171Z was
seen on September 21 2002 and October 25 2002 as well. Of course, it
then showed complete juvenile wings and tail as well. The left foot
is reported missing since at least April 2003.
By August 2003, 171Z was still present. P10 was still juvenile, P7 fully grown. All visible tertails and all visible wing-coverts have been replaced for second generation feathers, which have atypical second generation-like pattern, lacking obvious grey bases. The legs are still pinkish and the bill is black. The iris is pale brown.
left 965X & centre 171Z, May 01 2003.
27
June 2003
27
June 2003
10
August 2003
10
August 2003