Larus cachinnans

(last update: February 16, 2013)

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. 2. Upperpart grey tones as represented on the Kodak Grey Scale for cachinnans and similar taxa. Common Gull Larus canus is included as a good tonal match for cachinnans; values are for nominate canus. The michahellis values exclude the Atlantic island populations (atlantis), which have darker grey tones (from 7–7.5) than Iberian and Mediterranean birds. Values are based on Malling Olsen & Larsson (2003) and Jonsson (1998).