Saturday, 17th May 2025, 10:53 a.m.
Estuário do Douro--Observatório de Aves FAPAS/APDL, Porto, Porto, Portugal
Francisco Pires
| 1 | Muscovy Duck (Domestic type)Cairina moschata |
| 80 | Yellow-legged/Lesser Black-backed GullLarus michahellis/fuscus |
| X | Feral PigeonColumba livia (Feral Pigeon) |
| X | Yellow-legged GullLarus michahellis |
| X | Lesser Black-backed GullLarus fuscus Anilha amarela T:357 |