American Herring Gull, Larus smithsonianus
| Age/Type | Date | Location | Comments |
| Adult | September | Delaware, USA | |
| Adult | November | New Jersey, USA | Right eye dark, left eye pale |
| Adult | December | Maryland, USA | |
| Adult | December | Virginia, USA | Distinct dark tertial markings |
| Adult | March | Virginia, USA | Darker-eyed bird |
