Monthly Notables March 2017

• Common Gull (adult). Rockingham County, New Hampshire. 01 March 2017.
• Laughing Gull (adult). Lorain County, Ohio. 02 March 2017.
• Pair-bonding behavior observed with adult Ring-billed all throughout the month.
• Slaty-backed Gull (adult). San Mateo County, California. 02 March 2017.
• Continuing from February.
• Yellow-legged Gull (adult). 03 March 2017.
• Presumed atlantis. Continuing.
• Ivory Gull (1st cycle). Essex County, Ontario. 03 March 2017.
• Found in Flint, Michigan a week later.
• Little Gull (1st cycle). Berrien County, Michigan. 03 March 2017.
• A single bird continued for several weeks - not associating with other small gulls.
• Ivory Gull (1st cycle). Flint Michigan. 09 March 2017.
• Seen everyday through 13 March 2017 and then found dead late that morning. The specimen was delivered to the University of Michigan (Ann Arbor).
• Black-legged Kittiwake (1st cycle). Berrien County, Michigan. 10 March 2017.
• Slaty-backed Gull (adult). Benton County, Washington. 12 March 2017.
• Slaty-backed Gull (adult). St. John's County, Newfoundland. 17 March 2017.
• Kamchatka Gull (adult). Fairfield County, Connecticut. 20 March 2017.
• Black-headed Gull (adult). Sangamon County, Illinois. 23 March 2017.
• First county record.
• Lesser Black-backed Gull (1st cycle). Monterey County, California. 24 March 2017.
• Originally found in January 2017 with complete juvenile plumage, this presumed Heuglin's Gull (L.f. heuglini), was later sighted at the same location with ~80% post-juvenile scapulars. Possible 1st record of this taxon in the lower 48 states.
• Great Black-backed Gull (1st cycle). Loveland County, Colorado. 26 March 2017.
• Common Gull (adult). Barnstable County, Massachusetts. 26 March 2017.
• Mew Gull (adult). Richmond County, New York. 29 March 2017.

Monthly Notes

• An adult type Laughing x Ring-billed hybrid was found in Lorain, Ohio on 06 March 2017. This while a pure adult Laughing Gull was hanging out in this same harbor with a large contingent of Ring-billed Gulls. This seems to now be an established phenomenon on the Great Lakes, where the occasional adult Laughing Gull is found with Ring-billeds, and shortly after, a putative hybrid is detected in the following year(s).
• An overdue proposal to lump Thayer's and Iceland Gull has been submitted to the AOS Classification Committee (Proposal Set 2017-C).