Bluffers Gull ID

[Dinusaur]

I went to Scarborough Bluffers park today together with two other fellow birders. We saw Jean Iron there and he mentioned of Thayer's and Kumlien's (or may be Iceland) gulls. I have taken shots of gulls that look slightly different from ring-billed hoping to find Thayer's and Iceland or Kumlien's.  - not sure if I am identifying them correctly. Please help. Thanks in advance.

1. Thayer's on the left (bowed head) and Iceland (Kumlien's) on the right?


2. Herring or First year's Thayer's?


3. Kumlien's?


4. Thayer's or may be an adult Herring?

[Henrique Pacheco]

1. Adult Herring (left) Adult Kumlien's (right)
2. Juvenile Kumlien's
3. Adult Kumlien's
4. Adult Herring

[Dinusaur]

Thanks Henrique. I saw your post in Ontario Birds section and went back to see more of my photos that I took today in order find the Thayer's. Is the one on the right below a Thayer's?  Can't really tell the eye color. However, I believe the one behind it and appears larger in size is mostl likely an adult Herring. Are Thayer's gulls slightly smaller in size compared to Herrings? Thanks.

[Henrique Pacheco]

You got it! Congrats!