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Description: |
iv, 37 pages : maps ; 28 cm |
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Bibliography Note: |
Includes bibliographical references (page 7). |
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Summary, Etc. Note: |
Abstract: An index of the 1965 mourning dove breeding population was obtained by a call-count survey conducted throughout the United States. Trends in the breeding population index were calculated for three management units and for hunting and nonhunting States within the management units. Trends in the breeding population indexes from 1964 to 1965 were as follows: Eastern Unit down 3 percent, Central Unit down 5 percent, and the Western Unit down 14 percent. For the United States as a whole, the 1965 breeding population was down 6 percent from 1964. Indexes of all three management unites indicate that the breeding dove populations have not maintained their increased numbers of last year and nearly approximate those of 1963 when populations hit a 3-year low. Summaries of call-count surveys conducted in Canada during 1964 and 1965 are included. The average number of doves heard on comparable routes in Ontario and British Columbia increased 25 and 4 percent, respectively. |