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 2CY, April 30 2003, Etaples, NW France (50.42N,1.34E).

2CY michahellis from late-April. This individual has included many wing-coverts in the partial autumn moult as 1CY (first pre-basic moult). The inner greater coverts, most of the visible median and lower lesser coverts and randomly inner lesser coverts have all been replaced for second generation feathers. These feathers are slightly worn by late-April. The three upper tertials were replaced in this partial moult as well, contrasting with the old juvenile lower tertials.
The recently replaced upper scapulars are plain grey with a black shaft-streak.
Note that R1 on the right-hand side has been replaced for second generation as well.