Existing SPAs Survey and analysis for marine SPAs UK waters more 50 than database in numbers sufficient to to sufficient numbers in database ESAS analysis Annex 1/ROMAnnex species extension into marine Terrestrial/estuarine Terrestrial/estuarine Visual aerial survey aerial Visual Wholly marine SPA Targetted surveys Colony SPA with - present in ESAS in - present allow for analysis for allow SPA(s) Species Scientific name greater scaup Aythya marila ROMS x x x lesser scaup Aythya affinis common eider Somateria mollisima ROMS x x x king eider Somateria spectabilis Steller's eider Polysticta stelleri harlequin duck Histrionicus histrionicus long-tailed duck Clangula hyemalis ROMS x x x common scoter Melanitta nigra ROMS x x x x black scoter Melanitta americana surf scoter Melanitta perspicillata ROMS velvet scoter Melanitta fusca ROMS x x x bufflehead Bucephala albeola Barrow's goldeneye Bucephala islandica common goldeneye Bucephula clangula ROMS x x x red-breasted merganser Mergus serrator ROMS x x x goosander Mergus merganser ROMS x x x smew Mergellus albellus ROMS red-throated diver Gavia stellata Annex 1 x x x x x black-throated diver Gavia arctica Annex 1 x x x x Pacific diver Gavia pacifica great northern diver Gavia immer Annex 1 x x x white-billed diver Gavia adamsii great crested grebe Podiceps cristatus ROMS x x x red-necked grebe Podiceps grisena ROMS Slavonian grebe Podiceps auritus Annex 1 x x x x black-necked grebe Podiceps nigricollis ROMS black-browed albatross Thalassarche melanophris yellow-nosed albatross Thalassarche chlororhynchos Northern fulmar Fulmarus glacialis ROMS x x x x Fea's petrel Pterodroma feae capped petrel Pterodroma hasitata Cory's shearwater Calonectris borealis Annex 1 x x Scopoli's shearwater Calonectris diomedia great shearwater Puffinus gravis ROMS x sooty shearwater Puffinus griseus ROMS x x Manx shearwater Puffinus puffinus ROMS x x x x Balearic shearwater Puffinus mauretanicus Annex 1 x x x Macaronesian shearwater Puffinus baroli Wilson's storm petrel Oceanites oceanicus white faced storm petrel Pelagodroma marina European storm petrel Hydrobates pelagicus Annex 1 x x x Leach's storm petrel Oceanodroma leucorhoa Annex 1 x x x Swinhoe's storm petrel Oceanodroma monorhis red-billed tropicbird Phaethon aethereus northern gannet Morus bassanus ROMS x x x x great cormorant Phalocrocorax carbo ROMS x x x x double-crested cormorant Phalacrocorax auritus European shag Phalocrocorax aristotelis ROMS x x x x magnificent frigatebird Fregata magnificens Ascension frigatebird Fregata aquila red-necked phalarope Phalaropus lobatus Annex 1 grey phalarope Phalaropus fulicarius ROMS pomarine skua Stercorarius pomarinus ROMS Arctic skua Stercorarius parasiticus ROMS x x x long-tailed skua Stercorarius longicaudus ROMS great skua Stercorarius skua ROMS x x x ivory gull Pagophila eburnea Sabines gull Larus sabini ROMS black-legged kittiwake Rissa tridactyla ROMS x x x slender-billed gull Chroicocephalus genei Bonaparte's gull Chroicocephalus philadelphia black-headed gull Chroicocephalus ridibundus ROMS x x x little gull Hydrocoloeus minutus Annex 1 x x x Ross's gull Rhodostethia rosea laughing gull Larus atricilla Franklin's gull Larus pipixcan Mediterranean gull Larus melanocephalus Annex 1 x x x Audouin's gull Larus audouinii great black-headed gull Larus ichthyaetus common gull Larus canus ROMS x x x ring-billed gull Larus delawarensis ROMS lesser black-backed gull larus fuscus ROMS x x x herring gull Larus argentatus ROMS x x x yellow-legged gull Larus michahellis ROMS Caspian gull Larus cachinnans American herring gull Larus smithsonianus Iceland gull Larus glauciodes ROMS x x glaucous-winged gull Larus glaucescens glaucous gull Larus hyperboreus ROMS x x great-black-backed gull larus marinus ROMS x x x Aleutian tern Onychoprion aleuticus sooty tern Onychoprion fuscatus bridled tern Onychoprion anaethetus little tern Sternula albifrons Annex 1 x x x gull-billed tern Gelochelidon nilotica Caspian tern Hydroprogne caspia whiskered tern Chlidonias hybrida black tern Chlidonias niger Annex 1 white-winged tern Chlidonias leucopterus Cabot's tern Sterna acuflavida Sandwich tern Sterna sandvicensis Annex 1 x x x x royal tern Sterna maxima lesser crested tern Sterna bengalensis Forsters tern Sterna forsteri common tern Sterna hirundo Annex 1 x x x x Arctic tern Sterna paradisaea Annex 1 x x x x roseate tern Sterna dougallii Annex 1 x x x common guillemot Uria aalge ROMS x x x x Brunnich's guillemot Uria lomvia razorbill Alca torda ROMS x x x x black guillemot Cepphus grylle x x long-billed murrelet Brachyramphus perdix ancient murrelet Synthliboramphus antiquus little auk Alle alle ROMS x x Atlantic puffin Fratercula arctica ROMS x x x x tufted puffin Fratercula cirrhata.