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Birds of Note All Records For Great Black-backed Gull x Herring Gull
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| Great Black-backed Gull x Herring Gull | 2006 | Mar-May | Erie | a bird at Presque Isle S.P. 4/3 (Jerry McWilliams) and 4/10 (Ben Coulter) was carefully described and believed to be a hybrid. |
| Great Black-backed Gull x Herring Gull | 2013 | Mar-May | Erie | one at Presque Isle State Park 3/25 (Jerry McWilliams). |
| Great Black-backed Gull x Herring Gull | 2022 | Mar-May | Erie | probable adult at Presque Isle Bay 3/30 (Sam Meigs). |
| Great Black-backed Gull x Herring Gull | 2023 | Mar-May | Erie | one at Presque Isle State Park 4/20 (Jerry McWilliams, Tim Lenz). |