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 adult, August 10 2003, Etaples, France (50.44N, 01.35E).

Two images of feeding michahellis at Etaples. Average moult stage in the primaries: P8-P10 still old, P4 fully grown and P5 at the length of P3. Average Primary Moult Score (PMS): about 28 by August 10. All rectrices and secondaries old and present in the vast majority of full adult birds, showing heavy wear in the tail-feather tips. Note the red orbital ring, large red gonydeal spot which extends on the upper mandible, deep yellow iris and deep yellow legs in adult plumage. Both P9 and P10 have a mirror, particularly in adult males.