Kumlien's Iceland Gull at Ashbridges Bay, Toronto

23 February 2008

Kumlien's Iceland Gull in third basic (winter) plumage at Ashbridges Bay on 23 February 2008.Kumlien's Iceland Gull in third (winter) basic plumage. Third year birds are the rarest age class in the population. Later this year in the fall this individual will become an adult. Adults and first year birds are the two commonest age class in the population, followed by second year birds, and finally third year birds such as this individual, which are the least common age class as mortality accumulates before adult plumage is reached.


Same as above. See also third basic Kumlien's Iceland Gull at Bluffers Park on 18 February 2008