Sunday, 11th May 2025, 11:22 a.m.
Estuário do Douro--Observatório de Aves FAPAS/APDL, Porto, Porto, Portugal
Francisco Pires
| 1 | Muscovy Duck (Domestic type)Cairina moschata |
| 9 | MallardAnas platyrhynchos |
| 1 | Black-headed GullChroicocephalus ridibundus |
| 6 | Mediterranean GullIchthyaetus melanocephalus |
| 24 | Yellow-legged/Lesser Black-backed GullLarus michahellis/fuscus |
| X | Mallard (Domestic type)Anas platyrhynchos (Domestic type) |