Saturday, 4th January 2025, 11:40 a.m.
Estuário do Douro--Observatório de Aves FAPAS/APDL, Porto, Porto, Portugal
Rui Ferreira
| X | Feral PigeonColumba livia (Feral Pigeon) |
| X | Black-headed GullChroicocephalus ridibundus |
| X | Yellow-legged GullLarus michahellis |
| X | Lesser Black-backed GullLarus fuscus |
| X | Yellow-legged/Lesser Black-backed GullLarus michahellis/fuscus |
| X | Great CormorantPhalacrocorax carbo |
| X | House SparrowPasser domesticus |
| 3 | Muscovy Duck (Domestic type)Cairina moschata |
| 6 | MallardAnas platyrhynchos |
| 1 | Muscovy Duck x MallardCairina moschata x Anas platyrhynchos |
| 2 | Common WoodpigeonColumba palumbus |
| 3 | Collared DoveStreptopelia decaocto |
| 3 | Common SandpiperActitis hypoleucos |
| 1 | SanderlingCalidris alba |
| 1 | Little EgretEgretta garzetta |
| 1 | Grey HeronArdea cinerea |
| 1 | Common KingfisherAlcedo atthis |
| 1 | Common MagpiePica pica |
| 1 | Eurasian BlackbirdTurdus merula |
| 2 | Black RedstartPhoenicurus ochruros |
| 1 | Pied Wagtail/White WagtailMotacilla alba |
| 2 | Egyptian GooseAlopochen aegyptiaca |