glaucoides - kumlieni

(last update: January 26, 2012)

Kumlien's Gull (kumlieni) adult, February 07 2007, St John's, Newfoundland, Canada. Pictures: Chris Gibbins.

Age adult winter, lacking brown wash on primary coverts.

Wingtip darkness score: 2 - medium grey (Estimated Kodak 7-10). In the study by Howell & Mactavish, about 77% of Kumlien's Gulls in New Foundland belong to this category, see Table 1.

Wingtip scoring for dark markings on P5-P10: 2-4-5-5-4-1. See Plate 1 for explanation.

Wingtip pattern category: Type O, Stage 6; darker grey or more extensive grey marks on the outer six primaries with complete subterminal bands on three to four primaries among P6-P9. See primary patterns for explanation. In the study by Howell & Mactavish, about 5% of Kumlien's Gulls in New Foundland belong to this category, see Table 2.

Iris colour variation: 0 - iris uniformly dark brown. In the study by Howell & Mactavish, none of the Kumlien's Gulls in New Foundland belong to this category, see Table 3. Classification on speckling: Class 6 - brown / amber / clouded iris, see iris speckling).