The silver-grey or Southern Fulmar petrels were present in large numbers, especially about the steep north-eastern side of the island.
"The Home of the Blizzard" by Douglas Mawson
The fulmar petrel exists in myriads at St. Kilda and other haunts of the species, yet it lays only one egg.
"Darwinism (1889)" by Alfred Russel Wallace
FULMARS, PETRELS AND SHEARWATERS.
"Color Key to North American Birds" by Frank M. Chapman
The fulmars, shearwaters, petrels, and albatrosses are strictly maritime.
"Elementary Zoology, Second Edition" by Vernon L. Kellogg