BC Historical Books
Birds of the early explorers in the northern Pacific Pearse, Theed, 1871-
"A survey of observations made by explorers from 1741 to 1830, based on published and unpublished records."-- Strathern, G. M., & Edwards, M. H. (1970). Navigations, traffiques & discoveries, 1774-1848: A guide to publications relating to the area now British Columbia. Victoria, BC: University of Victoria, p. 235.