| Species | Date | Count | Location | Observer | Checklist |
|---|---|---|---|---|---|
| Black-headed Gull Chroicocephalus ridibundus | 21st Mar 2025 6:14 p.m. | 4 | Docapesca de Algés Lisboa, Lisboa | Jose Paulo Monteiro | |
| European Herring Gull Larus argentatus | 21st Mar 2025 6:14 p.m. | 1 | Docapesca de Algés Lisboa, Lisboa | Jose Paulo Monteiro | |
| Yellow-legged Gull Larus michahellis | 21st Mar 2025 6:14 p.m. | 85 | Docapesca de Algés Lisboa, Lisboa | Jose Paulo Monteiro | |
| Lesser Black-backed Gull Larus fuscus | 21st Mar 2025 6:14 p.m. | 49 | Docapesca de Algés Lisboa, Lisboa | Jose Paulo Monteiro |