Ontario Nature   https://ontarionature.org/

Nature Canada   http://naturecanada.ca/

Bird Studies Canada   https://www.birdscanada.org/

Ontario Field Ornithologists   http://www.ofo.ca/

Shaw Woods Outdoor Education Centre   http://www.shawwoods.ca/

MacNamara Field Naturalists Club (Arnprior)   http://mfnc.ca/

Nippissing Naturalists Club (North Bay)   https://www.nipnats.com/

Ottawa Field-Naturalists Club   http://ofnc.ca/

Friends of the Petawawa Research Forest   https://friendsoftheprf.com/

American Birding Association   https://www.aba.org/

Toronto Entomologists’ Association   https://www.ontarioinsects.org/