Lesser Black-backed Gull has been seen by:
| Birder | Location | Town | County | Date |
|---|---|---|---|---|
| Dick & Marge Bradley | Ninigret | Charlestown | Washington | 29-Feb-2016 |
| Matt Schenck | Ninigret NWR--Grassy Point | Charlestown | Washington | 28-Feb-2016 |
| Mark Pagliarini | Third Beach | Middletown | Newport | 01-Feb-2016 |
| DAVID WALLIS | Ninigret | Charlestown | Washington | 22-Jan-2016 |
| Barbara Sherman | Ninigret NWR | Charlestown | Washington | 16-Jan-2016 |
| Kevin Rogers | Ninigret NWR | Charlestown | Washington | 11-Jan-2016 |
| Wayne Munns | Cod Boat | Pelagic | Offshore | 09-Jan-2016 |
| Carlos Pedro | 12-30 mi offshore | Pelagic | Offshore | 09-Jan-2016 |
| Dominick Pacelli | Grassy Point | South Kingstown | Washington | 08-Jan-2016 |
| John Magill | Ninigret NWR | Charlestown | Washington | 01-Jan-2016 |
| Cathy Gim | Ninigret | Charlestown | Washington | 01-Jan-2016 |
| Jan St.Jean | Grassy Pt, Ninigret | Charlestown | Washington | 01-Jan-2016 |
| Don Heitzmann | Grassy Point | Charlestown | Washington | 01-Jan-2016 |
| SusieQ | Ninigret | Charlestown | Washington | 01-Jan-2016 |