Monthly Notables May 2017

• Black-tailed Gull (adult). Kitimat-Stikine County, British Columbia. 04 May 2017.
• Slaty-backed Gull (3rd cycle). Lambton County, Ontario. 06 May 2017.
• This individual, presumably seen on the Thunder Bay CBC in January 2017, then in Muskegon, Michigan in April 2017, was resighted just outside of Sarnia, Ontario near the St. Clair River.
• Black-headed Gul (1st cycle). Erie County, Ohio. 10 May 2017.
• Slaty-backed Gull (adult). Chippewa County, Michigan. 19 May 2017.
• Black-tailed Gull (2nd cycle type). San Francisco County, California. 23 May 2017.
• Ivory Gull (adult).  Bonavista/Trinity-Clarenville County, NF & Labrador. 23 May 2017.