Sunday, 4th May 2025, 11:25 a.m.
Estuário do Douro--Observatório de Aves FAPAS/APDL, Porto, Porto, Portugal
Francisco Pires
| 3 | Muscovy Duck (Domestic type)Cairina moschata (Domestic type) |
| 1 | Black-headed GullChroicocephalus ridibundus |
| 3 | Mediterranean GullIchthyaetus melanocephalus |
| 1 | Common GullLarus canus |
| X | Yellow-legged GullLarus michahellis |
| X | Lesser Black-backed GullLarus fuscus |
| 50 | Yellow-legged/Lesser Black-backed GullLarus michahellis/fuscus |
| 1 | Common MagpiePica pica |