Kumlien's Iceland Gulls at Bluffers Park in Toronto

Adult Kumlien's Iceland Gull with pale eye, moderate winter head streaking, and dark grey wingtips. This is a favourite spot for Iceland Gulls. Bluffers Park on 23 January 2020.

VIDEO: Kumlien's Iceland Gulls at Bluffers Park

Second adult Kumlien's Gull with a darkish eye, moderate winter head streaking and grey to dark grey primary tips. Bluffers Park on 23 January 2020.

Close-up of individual with pale yellow eye. Eye colour is variable in Kumlien's Gulls and is independent of darkness or paleness of wingtip pigmentation. Bluffers Park on 23 January 2020.

This third winter Kumlien's is striking and unmistakable. Bluffers Park on 23 January 2020.

Juvenile Kumlien's Iceland Gull with pale wingtips and fairly pale overall. Bluffers Park on 23 January 2020.

Juvenile Kumlien's Iceland Gull with darker markings in wingtips and is well-patterned overall. Bluffers Park on 23 January 2020.

Juvenile Kumlien's on right with first winter Herring Gull on left. Juvenile Kumlien's Iceland Gull with pale wingtips and fairly pale overall. Bluffers Park on 23 January 2020.