| Species | Date | Count | Location | Observer | Checklist |
|---|---|---|---|---|---|
| Pallid Swift Apus pallidus | 4th May 2025 7:30 a.m. | 8 | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Whimbrel Numenius phaeopus | 4th May 2025 7:30 a.m. | 10 | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Bar-tailed Godwit Limosa lapponica | 4th May 2025 7:30 a.m. | 1 | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Ruddy Turnstone Arenaria interpres | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Arctic Skua Stercorarius parasiticus | 4th May 2025 7:30 a.m. | 1 | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Pomarine Skua Stercorarius pomarinus | 4th May 2025 7:30 a.m. | 1 | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Audouin's Gull Ichthyaetus audouinii | 4th May 2025 7:30 a.m. | 1 | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Yellow-legged Gull Larus michahellis | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Lesser Black-backed Gull Larus fuscus | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Sandwich Tern Thalasseus sandvicensis | 4th May 2025 7:30 a.m. | 8 | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Cory's Shearwater Calonectris borealis | 4th May 2025 7:30 a.m. | 100 | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Scopoli's Shearwater Calonectris diomedea | 4th May 2025 7:30 a.m. | 2 | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Manx Shearwater Puffinus puffinus | 4th May 2025 7:30 a.m. | 1 | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Balearic Shearwater Puffinus mauretanicus | 4th May 2025 7:30 a.m. | 150 | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| small shearwater sp. Puffinus sp. | 4th May 2025 7:30 a.m. | 4 | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Northern Gannet Morus bassanus | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Great Cormorant Phalacrocorax carbo | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| European Shag Gulosus aristotelis | 4th May 2025 7:30 a.m. | 3 | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Crested Lark Galerida cristata | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Zitting Cisticola Cisticola juncidis | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Barn Swallow Hirundo rustica | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Sardinian Warbler Curruca melanocephala | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Black Redstart Phoenicurus ochruros | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| House Sparrow Passer domesticus | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Pied Wagtail/White Wagtail Motacilla alba | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| European Greenfinch Chloris chloris | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström | |
| Common Linnet Linaria cannabina | 4th May 2025 7:30 a.m. | X | PN Sintra-Cascais--Cabo Raso Cascais, Lisboa | Vilhelm Fagerström |
8, Pallid Swift(Apus pallidus)
10, Whimbrel(Numenius phaeopus)
1, Bar-tailed Godwit(Limosa lapponica)
X, Ruddy Turnstone(Arenaria interpres)
1, Arctic Skua(Stercorarius parasiticus)
1, Pomarine Skua(Stercorarius pomarinus)
1, Audouin's Gull(Ichthyaetus audouinii)
X, Yellow-legged Gull(Larus michahellis)
X, Lesser Black-backed Gull(Larus fuscus)
8, Sandwich Tern(Thalasseus sandvicensis)
100, Cory's Shearwater(Calonectris borealis)
2, Scopoli's Shearwater(Calonectris diomedea)
1, Manx Shearwater(Puffinus puffinus)
150, Balearic Shearwater(Puffinus mauretanicus)
4, small shearwater sp.(Puffinus sp.)
X, Northern Gannet(Morus bassanus)
X, Great Cormorant(Phalacrocorax carbo)
3, European Shag(Gulosus aristotelis)
X, Crested Lark(Galerida cristata)
X, Zitting Cisticola(Cisticola juncidis)
X, Barn Swallow(Hirundo rustica)
X, Sardinian Warbler(Curruca melanocephala)
X, Black Redstart(Phoenicurus ochruros)
X, House Sparrow(Passer domesticus)
X, Pied Wagtail/White Wagtail(Motacilla alba)
X, European Greenfinch(Chloris chloris)
X, Common Linnet(Linaria cannabina)