Abstract
During the period March 1950 through February 1958, C. C. Anderson banded and aged 14,406 mourning doves (Zenaidura macroura) at West Palm Beach, Florida. An interesting characteristic of these data is the high monthly percentages of juveniles in the unbanded adult-juvenile samples during the major portion of each year. This paper is concerned with the trend in the percent of newly banded birds that were juveniles during the period March through February, as well as a comparison of individual period trends through the 8 years of banding. The primary purpose of this paper is to determine whether or not the eight yearly trends of percent juveniles in the unbanded adult-juvenile sample (March through February) can adequately be described by one curvilinear regression line, rather than to speculate on the population characteristics which are reflected in these data.
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