Yellow-legged Gull - Larus michahellis

(last update: October 08 2013)

Delfín González
Gabriel Martín
Antonio Gutierrez
Amir Ben Dov
Mars Muusse

Yellow-legged Gull michahellis 1CY 379P November 24 2003, Leucate, S France.

379P has obviously replaced wing-coverts and tertials in the post-juvenile moult. All of the scapulars have been replaced for second generation feathers, including the rear lower scapulars, the ones covering the scapular coverts. In the upper scapulars, a subsequent moult to third generation feathers has started.

The partial autumn moult included:
Tertials #1-2, Greater coverts #1-4 & #14, Median coverts #1-3, 5, 7-10, Lower lesser coverts #1,2,4,7, Lesser coverts 8 feathers (app 50% of the visible lesser coverts; 60% visible and carpal edge and upper rows not visible, but expected to be juvenile).

The bill starts to get paler at base, along culmen at the very tip.