| Species | Date | Count | Location | Observer | Checklist |
|---|---|---|---|---|---|
| Arctic Skua Stercorarius parasiticus | 12th Jan 2025 7:45 a.m. | 1 | Canhão de Lisboa Sesimbra, Setúbal | Rogério Rodrigues | |
| Great Skua Stercorarius skua | 12th Jan 2025 7:45 a.m. | 5 | Canhão de Lisboa Sesimbra, Setúbal | Rogério Rodrigues | |
| Razorbill Alca torda | 12th Jan 2025 7:45 a.m. | 31 | Canhão de Lisboa Sesimbra, Setúbal | Rogério Rodrigues | |
| Black-legged Kittiwake Rissa tridactyla | 12th Jan 2025 7:45 a.m. | 4 | Canhão de Lisboa Sesimbra, Setúbal | Rogério Rodrigues | |
| Mediterranean Gull Ichthyaetus melanocephalus | 12th Jan 2025 7:45 a.m. | 11 | Canhão de Lisboa Sesimbra, Setúbal | Rogério Rodrigues | |
| Yellow-legged Gull Larus michahellis | 12th Jan 2025 7:45 a.m. | X | Canhão de Lisboa Sesimbra, Setúbal | Rogério Rodrigues | |
| Lesser Black-backed Gull Larus fuscus | 12th Jan 2025 7:45 a.m. | X | Canhão de Lisboa Sesimbra, Setúbal | Rogério Rodrigues | |
| Sandwich Tern Thalasseus sandvicensis | 12th Jan 2025 7:45 a.m. | 4 | Canhão de Lisboa Sesimbra, Setúbal | Rogério Rodrigues | |
| European Storm-Petrel Hydrobates pelagicus | 12th Jan 2025 7:45 a.m. | 2 | Canhão de Lisboa Sesimbra, Setúbal | Rogério Rodrigues | |
| Manx Shearwater Puffinus puffinus | 12th Jan 2025 7:45 a.m. | 2 | Canhão de Lisboa Sesimbra, Setúbal | Rogério Rodrigues | |
| Balearic Shearwater Puffinus mauretanicus | 12th Jan 2025 7:45 a.m. | 29 | Canhão de Lisboa Sesimbra, Setúbal | Rogério Rodrigues | |
| Northern Gannet Morus bassanus | 12th Jan 2025 7:45 a.m. | 100 | Canhão de Lisboa Sesimbra, Setúbal | Rogério Rodrigues |
1, Arctic Skua(Stercorarius parasiticus)
5, Great Skua(Stercorarius skua)
31, Razorbill(Alca torda)
4, Black-legged Kittiwake(Rissa tridactyla)
11, Mediterranean Gull(Ichthyaetus melanocephalus)
X, Yellow-legged Gull(Larus michahellis)
X, Lesser Black-backed Gull(Larus fuscus)
4, Sandwich Tern(Thalasseus sandvicensis)
2, European Storm-Petrel(Hydrobates pelagicus)
2, Manx Shearwater(Puffinus puffinus)
29, Balearic Shearwater(Puffinus mauretanicus)
100, Northern Gannet(Morus bassanus)