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, November 23 2003, Rosas, NE Spain.

An individual which replaced the average amount of upper tertials and wing-coverts in the post-juvenile moult and shows the ordinary sequence of this partial moult, which normally includes most inner wing-coverts and upper tertials. All scapulars have been replaced for second generation feathers, including the rear lower scapulars, the ones covering the scapular coverts.

The partial autumn moult included the upper tertials, the four inner greater coverts, the inner six median coverts, six lower lesser coverts and a few lesser coverts (randomly moulted) 80% of the lesser coverts is visible, only 10% has been replaced for second generation.

The bill turns paler at the tip.