Sunday, 13th April 2025, 10:40 a.m.
Estuário do Douro--Observatório de Aves FAPAS/APDL, Porto, Porto, Portugal
Jessé Roy-Drainville
| 6 | MallardAnas platyrhynchos |
| 25 | Feral PigeonColumba livia (Feral Pigeon) |
| 3 | Common SandpiperActitis hypoleucos |
| 4 | Ruddy TurnstoneArenaria interpres |
| 33 | Black-headed GullChroicocephalus ridibundus |
| 1 | European Herring GullLarus argentatus |
| 100 | Yellow-legged GullLarus michahellis |
| 70 | Lesser Black-backed GullLarus fuscus |
| 380 | Yellow-legged/Lesser Black-backed GullLarus michahellis/fuscus |
| 18 | Great CormorantPhalacrocorax carbo |
| 1 | Black RedstartPhoenicurus ochruros |