Larus marinus
Winter visitor and passage migrant. Small non-breeding population in summer.
| BOU Name |
Great Black-backed Gull
|
| Data Required |
All records May to August. Otherwise counts of 100+.
|
| Status | |
| Category |
| Name | Date | SiteName | Observer | Num | Notes |
|---|---|---|---|---|---|
| Great Black-backed Gull | 25 Sep 2021 | Thurrock Thameside Nature Park (EWT) | Steve Swinney | 7 | |
| Great Black-backed Gull | 25 Sep 2021 | Rainham Marshes NR RSPB | Steve Swinney | 1 | |
| Great Black-backed Gull | 24 Sep 2021 | Wat Tyler CP, Pitsea | Steve Swinney | 1 | |
| Great Black-backed Gull | 24 Sep 2021 | Old Hall Marshes NR RSPB | Steve Swinney | 1 | |
| Great Black-backed Gull | 23 Sep 2021 | Wallasea Island, Crouch/Roach Estuaries | Richard Mander | 1 | |
| Great Black-backed Gull | 21 Sep 2021 | Mersea Island | Stephen Entwistle | 8 | Tern Island SE |
| Great Black-backed Gull | 17 Sep 2021 | Stanway Green | Oliver Cottis | 4 | |
| Great Black-backed Gull | 16 Sep 2021 | Old Hall Marshes NR RSPB | Oliver Cottis | 2 | |
| Great Black-backed Gull | 16 Sep 2021 | Mersea Island | Stephen Entwistle | 1 | Off ivy dock SE |
| Great Black-backed Gull | 13 Sep 2021 | East Tilbury | Steve Swinney | 6 |