| Species | Date | Count | Location | Observer | Checklist |
|---|---|---|---|---|---|
| Yellow-legged Gull Larus michahellis | 4th Jan 2025 1:09 p.m. | X | PN Sintra-Cascais--Magoito Sintra, Lisboa | Luís Custódia | |
| Lesser Black-backed Gull Larus fuscus | 4th Jan 2025 1:09 p.m. | X | PN Sintra-Cascais--Magoito Sintra, Lisboa | Luís Custódia |