Radio-tagged northern bobwhite (Colinus virginianus) were monitored in the Sandhills region of North Carolina to investigate the influences of hunting on seasonal survival. We used the Kaplan-Meier product limit method with staggered entry design to calculate survival estimates and distributions for 79 radio-tagged bobwhite representing 33 coveys during November-February 1987-89. Estimated winter survival rates for year 1 (59%) and for pooled years (67%) in the nonhunted study areas were greater than in the hunted areas (31 and 45%, respectively; P < 0.05). Survival trends for the second winter were again greater in the nonhunted study areas (7 4%) but not different than hunted study areas (63%; P > 0.05). Avian predation was the major proximate cause of mortality, accounting for 66% of the known losses. Summer whistle count surveys indicated that nonhunted study areas contained more (P< 0.05) whistling bobwhite per station than hunted areas following winter hunting seasons.
Robinette, Charles F. and Doerr, Phillip D.
"Survival of Northern Bobwhite on Hunted and Nonhunted Study Areas in the North Carolina Sandhills,"
National Quail Symposium Proceedings: Vol. 3
, Article 10.
Available at: http://trace.tennessee.edu/nqsp/vol3/iss1/10