| Name |
Species |
Comment |
| Cory's Shearwater |
Calonectris diomedea |
3 on 29th |
| Manx Shearwater |
Puffinus puffinus |
1 on 29th |
| Balearic Shearwater |
Puffinus yelkouan mauretanicus |
2 on 27th |
| European Storm-petrel |
Hydrobates pelagicus |
1 on 27th |
| Gannet |
Morus bassanus |
27th & 28th & 29th |
| Cormorant |
Phalacrocorax carbo |
Several in Portsmouth |
| Griffon-vulture |
Gyps fulvus |
2 on 28th over Bilbao |
| Common Kestrel |
Falco tinnunculus |
Several in Bilbao |
| Golden Plover |
Pluvialis apricaria |
1 on 27th |
| Turnstone |
Arenaria interpres |
1 on 27th |
| Great Skua |
Catharacta skua |
3 on 27th & several on 29th |
| Pomarine Skua |
Stercorarius pomarinus |
1 on 27th |
| Arctic Skua |
Stercorarius parasiticus |
2 on 27th & several on 29th |
| Herring Gull |
Larus argentatus |
Numerous around Portsmouth |
| Western Yellow-legged Gull |
Larus cachinnans michahellis |
Numerous in Bilbao port |
| Lesser Black-backed Gull |
Larus fuscus graellsi |
27th & 28th & 29th & numerous around Portsmouth |
| Black-headed Gull |
Larus ridibundus |
Numerous in Bilbao port & around Portsmouth |
| Little Gull |
Larus minutus |
1 on 28th |
| Sabine's Gull |
Larus sabini |
5 on 27th |
| Kittiwake |
Rissa tridactyla |
Numerous around Portsmouth on 29th |
| Common Tern |
Sterna hirundo |
20 on 28th & numerous around Portsmouth on 29th |
| Little Tern |
Sterna albifrons |
Several around Portsmouth on 29th |
| Turtle Dove |
Streptopelia turtur |
2 on 27th & on 28th |
| Yellow Wagtail |
Motacilla flava flavissima |
1 on 28th |
| Reed-warbler |
Acrocephalus scirpaceus |
1 on 28th |
| Pied Flycatcher |
Ficedula hypoleuca |
2 on 27th |
| House Sparrow |
Passer domesticus |
Numerous in Bilbao |
| Serin |
Serinus serinus |
Several in Bilbao |
