- Glaucous Gull (2nd cycle type). Grays Harbor County, Washington. 01 August 2015.
- Ross's Gull (adult type). Les Escoumins, Quebec. 4-6 August 2015.
- Exceptional. The farthest south a ROGU has ever been observed in August in North America.
- Iceland Gull (1st cycle). Les Basques County, Quebec. 04 August 2015.
- Lesser Black-backed Gull (3rd cycle). Humboldt County, California. 07 August 2015.
- Interestingly, a 2nd cycle LBBG was sighted at this same location last year in the month of August, resembling this month's bird in size and structure. Hence, it's thought this is a returning bird. Subspecies has been relegated to the expected North American race, graellsii. Lesser Black-backeds found along the Pacific seaboard should be closely scrutinized and Asian taxa must not be dismissed.
- Laughing Gull (juvenile). Jefferson County, Kentucky. 11 August 2015.
- Glaucous Gull (2nd cycle type). Manitowoc County, Wisconsin. 13 August 2015.
- Glaucous Gull (2nd cycle type). Muskegon County, Michigan. 13 August 2015.
- Likely the same bird noted in Wisconsin the day before, traversing Lake Michigan.
- Sabine's Gull (adult). Williamson County, Texas. 14 August 2015.
- Mew Gull (juvenile). Humboldt County, California. 19 August 2015.
- Several experienced birders from the West Coast suspect there may be a poorly understood movement of Mew Gulls in the month of August - juveniles in particular.
- Sabine's Gull (adult type). Minidoka County, Idaho. 19 August 2015.
- Little Gull (juvenile). Mason County, Illinois. 21 August 2015.
- Franklin's Gull (adult type). Baltimore County, Maryland. 21 August 2015.
- Yellow-legged Gull (4th cycle type). St. John's, Newfoundland. 23 August 2015.
- Sabine's Gull (adult). Hamilton, Ontario. 23 August 201
- Franklin's Gull (juvenile). Sarnia, Ontario. 23-29+ August 2015.
- Sabine's Gull (adult). Maricopa County, Arizona. 25 August 2015.
- Slaty-backed Gull (adult). Pierce County, Washington. 29 August 2015.
- Mew Gull (juvenile). Lincoln County, Oregon. 30 August 2015.
- An early arrival, but also noted here to reinforce the thought that juvenile Mew Gulls may depart sooner, and farther south, than adults.
- Sabine's Gull (2 adult types). Barnstable County, Massachusetts. 31 August 2015.
01 September 2015
Monthly Notables August 2015
August 2015 Notables