glaucoides - kumlieni

(last update: January 26, 2012)

Coordinators:
Dave Brown (Canada)
Bruce Mactavish (Canada)
Chris Gibbins (Scotland)
Peter Adriaens (Belgium)
Mars Muusse (Netherlands)

Kumlien's Gull adult (kumlieni), May 01 2004, Nuuk, Greenland. Picture: Lars Witting.

See Netfugl.dk.

Age adult winter, lacking brown wash on primary coverts. Depending on definitions, this should be "minimal" pattrned Kumlien's. Red orbital ring.

Wingtip darkness score: 1.5 - medium-pale grey (Estimated Kodak 5-6). In the study by Howell & Mactavish, about 3% of Kumlien's Gulls in New Foundland belong to this category, see Table 1.

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

Wingtip pattern category: Type B, Stage 1; darker grey marks on the outer one to four primaries but no subterminal marks. See primary patterns for explanation. In the study by Howell & Mactavish, about 9% of Kumlien's Gulls in New Foundland belong to this category, see Table 2.

Iris colour variation: 1 - iris overall pale brown or honey coloured. In the study by Howell & Mactavish, about 2% of Kumlien's Gulls in New Foundland belong to this category, see Table 3. Classification on speckling: Class 6 - clouded iris (honey), see iris speckling).