| 3 | Andorinhão-pretoApus 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 | Gaivota-d'asa-escuraLarus 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 | Garça-branca-pequenaEgretta garzetta |
| 1 | Garça-realArdea 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 | Chapim-azulCyanistes caeruleus Seen in the pine trees in the surrounding area. |
| 1 | Chapim-realParus major Seen in the pine trees in the surrounding area. |
| 1 | Estorninho-pretoSturnus unicolor |
| 3 | MelroTurdus merula |
| 20 | Pardal-do-telhadoPasser domesticus |
| 4 | Alvéola-brancaMotacilla alba |