This paper derives the welfare loss to landowners from wildlife damage, which is not the same as the value of yield loss. The paper then estimates the welfare loss to Ontario landowners using willingness to tolerate losses as an indication of on-farm wildlife benefits. Results for Ontario fieldcrop producers in 1998 suggest that the welfare loss is approximately half of the value of the yield loss. A number of variables are significant predictors of willingness to tolerate losses, including wildlife species, prevention activity, changes in local wildlife population levels, and landowners perceptions of the recreational and non-use benefits from wildlife.