US Fish & Wildlife Service
Date of this Version
Nationwide dove population indexes in the 1967 Mourning Dove Status Report were obtained by essentially the same data gathering and analyzing procedures as in 1966. A refinement was made in the base year index, using the mean of the 1966 and 1967 readings as the base for all States. There was a slight adjustment in physiographic region boundaries.
Published by Bureau of Sport Fisheries and Wildlife Special Scientific Report--Wildlife No. 121 Washington, D.C. - December 1968.