Sunday, 20th April 2025, 5:57 p.m.
Ria de Aveiro--frente ribeirinha de São Jacinto, Aveiro, Aveiro, Portugal
Stuart MacKay
| 3 | MallardAnas platyrhynchos |
| 36 | Pallid SwiftApus pallidus |
| 1 | Common Ringed PloverCharadrius hiaticula |
| 28 | WhimbrelNumenius phaeopus |
| 3 | Ruddy TurnstoneArenaria interpres |
| 80 | DunlinCalidris alpina |
| 1 | Mediterranean GullIchthyaetus melanocephalus |
| X | Yellow-legged GullLarus michahellis |
| 3 | Great Black-backed GullLarus marinus Exact count |
| X | Lesser Black-backed GullLarus fuscus |
| 3 | Little TernSternula albifrons |
| 1 | Arctic TernSterna paradisaea Ad. White secondaries, pale grey primaries with no hint of darker colour on outer primaries. Fishing in the river with sandwich terns and 1 common tern. |
| 31 | Common TernSterna hirundo Exact count of birds flying upriver, with 3 roosting on the buoys near the ferry terminal. |
| 544 | Sandwich TernThalasseus sandvicensis Exact count of birds flying upriver and roosting on the buoys near the ferry terminal. I think this is the highest count ever |
| 4 | Great CormorantPhalacrocorax carbo |
| 3 | Little EgretEgretta garzetta |
| 5 | Black KiteMilvus migrans |
| 1 | Common BuzzardButeo buteo |
| 26 | Sand MartinRiparia riparia |
| 2 | Barn SwallowHirundo rustica |
| 1 | Eurasian BlackbirdTurdus merula |
| 1 | Black RedstartPhoenicurus ochruros |
| 3 | House SparrowPasser domesticus |
| 2 | Pied Wagtail/White WagtailMotacilla alba |
| 3 | European GreenfinchChloris chloris |