Statistics Canada: Total Person-Trips to Canada: Visitors of the United States (by activity) 2007 http://www.cssa-cila.org/garryb/publications/2008/945.pdf

Statistics Canada: Total Person-Trips to Canada: Visitors of Overseas Countries (by activity) 2007 http://www.cssa-cila.org/garryb/publications/2008/946.pdf

Travel Activities and Motivation Survey (TAMS) (2006)
These reports, published in 2008, were prepared by Lang Research Inc. on behalf of: Ontario Ministry of Tourism, Ontario Tourism Marketing Partnership Corporation, Quebec Ministry of Tourism, Travel Manitoba, Canadian Tourism Commission, Tourism Saskatchewan, Atlantic Canada Tourism Partnership, Alberta Tourism, Parks, Recreation and Culture, Department of Canadian Heritage, Tourism British Columbia, Parks Canada Agency, Government of Yukon, Government of Northwest Territories.

Canadian Activity Profile: Hunting While on Trips http://www.corporate.canada.travel/docs/research_and_statistics/product_knowledge/tams_2006/CDN_Hunting_en.pdf

U.S. Activity Profile: Hunting While on Trips http://www.corporate.canada.travel/docs/research_and_statistics/product_knowledge/tams_2006/US_Hunting_en.pdf

Canadian Activity Profile: Fishing While on Trips http://www.corporate.canada.travel/docs/research_and_statistics/product_knowledge/tams_2006/CDN_Fishing_en.pdf

Changing U.S. Travel Trends to Canada made for the Canadian Tourism Commission in 2006.
http://www.corporate.canada.travel/docs/research_and_statistics/market_knowledge/Shifflets_Feb_3_FINAL_ENGLISH2pm.pdf

See slide on page 70:
Among eight competing destination and apart from the U.S., Canada is the top country choice for participating in the following activities: