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.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYiSUCDIlTNfSZqdDET_nhu4t-bPadFEjo7rDN3i1LCFgMXszTBtkzfZaLu8rLS0h0IHLTT72iZAQznpefp1kK61kochLaJ_kwK537ujQy2az-6vxWHY5OkzRX4Q3ZmiEVIVaEhRQBgIeX/s1600/adult+kugu.jpg) |
Kumlien's Gull (adult). Jefferson County, WI. 02 Feb 2015. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjh0pMdNCzH-u6-bJZBzeeZQCgwyZSZO1Q0u1inQ5zoPGktQkDSjfG4Y8N44Fw8xfLfqLIg2NNDE2ejo1XRlqVfU5x_kyx-1Uy5CG_dtoGWiQ_c877gvUckQHJC61Frg_Pq_4ctjQ3tdXtc/s1600/1st+cycle+kugu.jpg) |
Kumlien's Gull (1st cycle). Jefferson County, WI. 02 Feb 2015. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgq5HyskivUcmEwl6ONqCabpGjUNaIHwI6Klr0S5eCX33SYxOEdZ_t8QQV-YM39KGSiRAD2z2EYXU1oWpd85MaA1Bony2La-iCLbJWuY2d_Bcq_cvPkYx9JyU3ht-SqZ8sXya4d34HfMOZe/s1600/1st+cycle+glgu.jpg) |
Glaucous Gull (1st cycle). Jefferson County, WI. 02 Feb 2015. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEghIWrkz31NDpsAgpYs8PrfDzpiBfLT6hNx5VMQK1niBbsd6wNqMawLPFaDmMVXpeAegFnGupav_RT6LLjxwYlJITtfa0lZAZY9OeuxmJ7sckNmQGdlvsBmOBYIbWdBf4GWxzhspS222_Qy/s1600/DSC_4558.JPG) |
Adult American Herring showing alternate head pattern. Jefferson County, WI. 02 Feb 2015. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhb8DGBzcv6saHuI4W1NPs5_mlSoHT7NEcaMSurVUolcWVV8nNi9fvIF5eEI2BQ7mYN0PQ0cKSjnUyyvjTJV7rvlcuX4kbVhrnzdqmQCVrfEWRktPG7jIZYq_Sd5zsrMW9XwZqwQ2iu2veN/s1600/2nd+cycle+kugu.jpg) |
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. |