Bird, J., R. Martin, H.R. Akçakaya, et al. 2020. Generation lengths of the world’s birds and their implications for extinction risk. Conservation Biology 34:1252–1261.
Campbell , R.W. , M.I. Preston , S.G. Sealy, et al.. 2006b. Featured Species – Heerman’s Gull. Wildlife Afield. 3:152-204.
Campbell, R.W., N.K. Dawe, I. McTaggart-Cowan, et al. 1990b. The Birds of British Columbia Vol. 2: Nonpasserines: Diurnal Birds of Prey through Woodpeckers. Royal British Columbia Museum, Victoria, BC.
Fink, D., T. Auer, A. Johnston, et al. 2023. eBird Status and Trends, Data Version: 2022; Released: 2023. Cornell Lab of Ornithology, Ithaca, New York.
Islam, K. and E. Velarde. 2020. Heermann's Gull (Larus heermanni), version 2.0. In Birds of the World (P. G. Rodewald and B. K. Keeney, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA.
Mellink, E. 2001. History and Status of Colonies of Heermann’s Gull in Mexico. Waterbirds: The International Journal of Waterbird Biology 24(2): 188–194.
Morgan, K.H., K. Vermeer and R.W. McKelvey. 1991. Atlas of Pelagic Birds of Western Canada. Canadian WIldlife Service. Occasional Paper no. 72. 72 pp
Velarde, E. 1999. Breeding Biology of Heermann's Gulls on Isla Rasa, Gulf of California, Mexico. The Auk 116: 513–519.
Cross-Linked Information Resources (CLIR): an umbrella search web application that allows users to
use a single window to simultaneously search six provincial environmental and natural resource information
e-libraries and provides access to digital documents in these e-libraries.
