Townsend, C. H. (1890). Scientific results of explorations by the U. S. Fish Commission steamer Albatross. No. XIV.—Birds from the coasts of western North America and adjacent islands, collected in 1888-'89, with descriptions of new species. Proceedings of the United States National Museum. 13(799): 131-142.
Scientific results of explorations by the U. S. Fish Commission steamer Albatross. No. XIV.—Birds from the coasts of western North America and adjacent islands, collected in 1888-'89, with descriptions of new species