| Species | Date | Count | Location | Observer | Checklist |
|---|---|---|---|---|---|
| Black-headed Gull Chroicocephalus ridibundus | 3rd Mar 2025 4:37 p.m. | 6 | Porto de Viana do Castelo Viana do Castelo, Viana do Castelo | Rafael Costas | |
| Yellow-legged Gull Larus michahellis | 3rd Mar 2025 4:37 p.m. | 95 | Porto de Viana do Castelo Viana do Castelo, Viana do Castelo | Rafael Costas | |
| Caspian/Herring/Yellow-legged Gull Larus cachinnans/argentatus/michahellis | 3rd Mar 2025 4:37 p.m. | 1 | Porto de Viana do Castelo Viana do Castelo, Viana do Castelo | Rafael Costas | |
| Lesser Black-backed Gull Larus fuscus | 3rd Mar 2025 4:37 p.m. | 20 | Porto de Viana do Castelo Viana do Castelo, Viana do Castelo | Rafael Costas | |
| Larus sp. Larus sp. | 3rd Mar 2025 4:37 p.m. | 200 | Porto de Viana do Castelo Viana do Castelo, Viana do Castelo | Rafael Costas |