Arctic skuas and Pacific Golden Plover along Madeira coast

Today, the 16th September 2010 on a land birdwatching tour the following vagrant birds were observed:
2 Arctic Skuas Stercorarius parasiticus - both adult summer, one dark and one pale
1 Pacific Golden Plover Pluvialis fulva
1 Solitary Sandpiper Tringa solitaria
1 Ringed Plover Charadrius hiaticula
2 Sanderlings Calidris alba
1 Black-headed Gull Chroicocephalus ridibundus
1 Roseate Tern Sterna dougallii
3 Dunlins Calidris alpina
1 Common sandpiper Actitis hypoleuca
2 Little Egret Egreta garzeta