Bracken-pulling at North Valley, Skomer island, August 1989 Math Eitemau Uwchlwytho gan Archif Ynys Sgomer
Sarah Anthony conducting research, Skomer Island, 1999 Math Eitemau Uwchlwytho gan Archif Ynys Sgomer
Clearing reeds at North Pond, Skomer Island, October 2002 Math Eitemau Uwchlwytho gan Archif Ynys Sgomer
North Pond Research Hide, Skomer Island, 27th October 2002 Math Eitemau Uwchlwytho gan Archif Ynys Sgomer
