Relative timing of harvest for adult male mule deer (Odocoileus hemionus) taken by hunters in the western Canadian or US management units during 1999–2016. We used the median day (50% of harvest reached) and the day most of the harvest (90%) was reached to generate harvest variables for our individual jurisdiction analyses or meta-analysis of chronic wasting disease prevalence trends. Points represent data for individual years; no trend across years should be inferred. For reference, 1 October∼275, 1 November∼305, 1 December∼335. The dashed line demarks the estimated peak mule deer breeding date in each jurisdiction. See Supplementary Material Table S1 for details on individual units. AB=Alberta, Canada; CO=Colorado; NE=Nebraska; UT=Utah; WY=Wyoming.