1. Wildlife Research Division; Science and Technology Branch; Environment and Climate Change Canada; Delta British Columbia Canada
2. Rocky Point Bird Observatory; Hummingbird Project of British Columbia; Canada
3. Department of Biological Sciences; Simon Fraser University; Burnaby British Columbia Canada
4. Ecotoxicology and Wildlife Health Division; Science and Technology Branch; Environment and Climate Change Canada; National Water Research Centre; Ottawa Ontario Canada
5. Ecotoxicology and Wildlife Health Division; Science and Technology Branch; Environment and Climate Change Canada; Delta British Columbia Canada