glaucoides - kumlieni

(last update: January 26, 2012)

Kumlien's Gull (kumlieni) adult, February 10 2007, St John's, Newfoundland, Canada. Pictures: Chris Gibbins.

Age adult winter, lacking brown wash on primary coverts.

Wingtip darkness score: 3 - blackish grey (Estimated Kodak 14-17). In the study by Howell & Mactavish, about 5% of Kumlien's Gulls in New Foundland belong to this category, see Table 1.

Wingtip scoring for dark markings on P5-P10: 0-0-2-3-2-1. See Plate 1 for explanation.

Wingtip pattern category: Type F, Stage 2; darker grey marks on the outer three to four primaries with subterminal marks on one to three primaries. See primary patterns for explanation. In the study by Howell & Mactavish, about 11% of Kumlien's Gulls in New Foundland belong to this category, see Table 2.

Iris colour variation: -