glaucoides - kumlieni

(last update: January 26, 2012)

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

Kumlien's Gull (kumlieni) adult, February 10 2012, near Reykjavik - SW Iceland. Picture: Ómar Runólfsson.

Age adult winter, lacking brown wash on (primary) coverts.

below: Kumlien's Gull (kumlieni) & Iceland Gull (glaucoides) adults.

Birds showing general similarities between taxa, except for the outer primary pigmentation.

below: with immature (4cy) glaucoides - outer-webs not contrastingly darker than upperparts.

below: bird most right showing obvious darker outer-webs.

below: Kumlien's Gull (kumlieni) adult and 4cy. Bird in the backbround showing dark outer primaries and paler central primaries; might be Kumlien's Gull as well, in 4cy with much pattern on tail and greater coverts, but already adult-like bill and pale iris.