By "the works" I mean all 7 of our expected winter gull species...
I spent a couple of hours near the Johnson Creek Landfill today in Jefferson County, Wisconsin. The gulls responded well with ~900 Herrings dominating, ~25 Ring-billeds, and among them the following highlights: Glaucous (4), Kumlien's (3), Thayer's (5-6), Great Black-backed (1), Lesser Black-backed (3), and an intermediate 2nd cycle type Thayer's/Kumlien's.
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| Kumlien's Gull (adult). Jefferson County, WI. 02 Feb 2015. |
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| Kumlien's Gull (1st cycle). Jefferson County, WI. 02 Feb 2015. |
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| Glaucous Gull (1st cycle). Jefferson County, WI. 02 Feb 2015. |
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| Adult American Herring showing alternate head pattern. Jefferson County, WI. 02 Feb 2015. |
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2nd Cycle Thayer's/Kumlien's type. Tending towards Thayer's per the dark outer primaries, although some Kumlien's may match this.
Jefferson County, WI. 02 Feb 2015. |