A6.105 Assemblages of breeding seabirds

Total number of breeding seabirds on the UK SPA network


To the total of seabirds occurring on sites holding major seabird assemblages (4,724,078 individuals) can be added those species that occur as qualifying species at sites where total numbers are less than 10,000 pairs. This amounts to a further 222,470 pairs of 14 species at 51 further SPAs, bringing the total number of seabirds breeding in the SPA network to 4,946,548 individuals. Note, however, that this is a minimum estimate of the number of breeding seabirds that benefit from the general habitat conservation provisions on seabird SPAs. This is because the total excludes non-qualifying seabird species which breed at sites classified for seabirds but where there are less than 10,000 pairs.  


Table 6.105.1. SPAs holding more than 20,000 individual breeding seabirds


Site Number of individual breeding seabirds
Ailsa Craig 65,000
Alde-Ore Estuary 59,118
Buchan Ness to Collieston Coast 95,000
Calf of Eday 30,000
Canna and Sanday 21,000
Cape Wrath 50,000
Copinsay 70,000
Coquet Island 33,448
East Caithness Cliffs 300,000
Fair Isle 180,000
Farne Islands 142,490
Fetlar 22,000
Firth of Forth Islands 90,000
Flamborough Head and Bempton Cliffs 305,784
Flannan Isles 50,000
Foula 250,000
Fowlsheugh 170,000
Handa 200,000
Hermaness, Saxa Vord and Valla Field 152,000
Hoy 120,000
Isles of Scilly 26,616
Lough Neagh and Lough Beg 67,690
Marwick Head 75,000
Mingulay and Berneray 110,000
Morecambe Bay 61,858
North Caithness Cliffs 110,000
North Colonsay and Western Cliffs 30,000
North Rona and Sula Sgeir 130,000
Noss 100,000
Rathlin Island 66,000
Ribble and Alt Estuaries 29,236
Rousay 30,000
Rum 130,000
Shiant Isles 200,000
Skomer and Skokholm 67,278
St Abb's Head to Fast Castle 79,560
St Kilda 600,000
Sule Skerry and Sule Stack 100,000
Sumburgh Head 35,000
Troup, Pennan and Lion's Heads 150,000
West Westray 120,000
Total seabirds at assemblage sites 4,724,078
Total seabirds at non-assemblage sites 222,470
Total seabirds in UK SPA network 4,946,548