Answers are grounded in this paper and cite their sources.
Kevin W. Dufour, C. Davison Ankney, Patrick J. Weatherhead, Condition and Vulnerability to Hunting among Mallards Staging at Lake St. Clair, Ontario, The Journal of Wildlife Management, Vol. 57, No. 2 (Apr., 1993), pp. 209-215
No takes yet. Share an insight, caveat, or question.
Dufour et al. (1993) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: