Adult Thayer’s Gulls, Lake Michigan region – 201402

A selection of adult Thayer’s Gulls Larus thayeri, seen in the southern Lake Michigan region, USA, in February 2014.

Adult Thayer’s Gull was a gull that I was looking forward to see the most during my trip: it has one of my favourite primary patterns.

Bird #1 – 5th-calendar year type

Individual with black markings in the outer tail feathers.

15 February 2014, North Point Marina, Winthrop Harbor, Illinois, USA.

Winthrop Harbor, Illinois

Winthrop Harbor, Illinois

Winthrop Harbor, Illinois

Winthrop Harbor, Illinois

Bird #2

15 February 2014, North Point Marina, Winthrop Harbor, Illinois, USA.

Winthrop Harbor, Illinois

Winthrop Harbor, Illinois

Winthrop Harbor, Illinois

Winthrop Harbor, Illinois

Bird #3

15 February 2014, North Point Marina, Winthrop Harbor, Illinois, USA.

Winthrop Harbor, Illinois

Winthrop Harbor, Illinois

Winthrop Harbor, Illinois

Bird #4

16 February 2014, BP Whiting refinery, Indiana, USA.

BP Whiting refinery, Indiana, USA

BP Whiting refinery, Indiana, USA

BP Whiting refinery, Indiana, USA

BP Whiting refinery, Indiana, USA

Witn adult American Herring Gulls.

Witn adult American Herring Gulls.

Various individuals

Lake County Fairground, Libertyville, Illinois. 14 February 2014.

Lake County Fairground, Libertyville, Illinois

With American Herring Gull (right)

With American Herring Gull (right)

Between American Herring Gulls.

Between American Herring Gulls.

15 February 2014, North Point Marina, Winthrop Harbor, Illinois, USA.

Winthrop Harbor, Illinois

Winthrop Harbor, Illinois

Winthrop Harbor, Illinois

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