Ted Seiler

Observer Group Accuracy in Plotting Locations of Northern Bobwhites when using Fall Covey Calls

Morning covey call counts are popular for estimating fall abundance of northern bobwhite (Colinus virginianus). However, veracity of the technique's abundance estimates are questionable with numerous assumptions inherent to the technique. Therefore, we used captive bobwhites to test ability of three groups of observers to plot calling bobwhite locations on an aerial photo. We found no difference (P < 0.05) between observer groups when plotting calling bobwhites from within a grid cell. Accuracy was generally poor (x¯ = 75.0 m, SE = 10.9) regardless of where in the grid cell the calling...

Year
2005