Larus cachinnans

(last update: February 16, 2013)

Greg Neubauer
Marcin Przymencki
Albert de Jong
Mars Muusse


cachinnans plumages

Larus michahellis 1cy, November 24 2006, Etaples, NW France. Picture: Ruud Altenburg.

The post-juvenile moult of michahellis is similar to that of cachinnans (in timing and extent; often there are coverts and upper tertials involved as well), but typically the second-generation feathers (visible here in the scapulars, tertials and coverts) are strongly marked with bars and anchors.Yellow-legged Gull includes 0–100% of its coverts in the post-juv
moult; this bird has had an average moult like many and only a still lots of first generation feathers are visible in the wing. Herring Gulls do not look like this until mid July of their
second calendar-year.