| 3 | Common SwiftApus apus Several individuals seen circling and entering ventilation ducts of the Lisbon Oceanarium building. Flight was smooth and not as fast/direct as typical foraging swifts. Underparts appeared paler/whitish in certain light conditions. |
| 32 | Lesser Black-backed GullLarus fuscus Group of adults and subadults observed along the banks of the Tejo River, near the Lisbon Oceanarium. Gulls were resting and loosely scattered, not in the inner dock area, but on the river side. |
| 1 | Little EgretEgretta garzetta |
| 1 | Grey HeronArdea cinerea Single individual seen resting on the steps leading to the water at Docas dos Olivais, near the entrance to the Lisbon Oceanarium. Likely using the area as a vantage point. |
| 1 | Eurasian Blue TitCyanistes caeruleus Seen in the pine trees in the surrounding area. |
| 1 | Great TitParus major Seen in the pine trees in the surrounding area. |
| 1 | Spotless StarlingSturnus unicolor |
| 3 | Eurasian BlackbirdTurdus merula |
| 20 | House SparrowPasser domesticus |
| 4 | Pied Wagtail/White WagtailMotacilla alba |