Key points are not available for this paper at this time.
Tozer, D. C., C. M. Falconer, and D. S. Badzinski. 2013. Common Loon reproductive success in Canada: the west is best but not for long. Avian Conservation and Ecology 8(1): 1.http://dx.doi.org/10.5751/ACE-00569-080101
Tozer et al. (Tue,) studied this question.