Larus cachinnans
(last update:
Greg Neubauer
Marcin Przymencki
Albert de Jong
Mars Muusse
cachinnans plumages
From the Rarities Committee's files - Identification of Caspian Gull. Part 1: typical birds, by Chris Gibbins, Brian J. Small and John Sweeney, IN: BB 103/2010.
Fig. 1. Key terms, feather groups and plumage features referred to in the text. All images show cachinnans: upper two are from an adult (Latvia, April 2009), lower left is a 1CY (Romania, September 2006), lower right is an adult (Romania, September 2008). All images Chris Gibbins.
