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Author: Gardiner Bump
Publisher:
ISBN:
Category : Animal introduction
Languages : en
Pages : 60
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Book Description
State reports covering the propagation and trial liberation of foreign game birds are summarized from the period 1960 through 1963. Details are then provided in tabular form. Of the 21 species and subspecies and 6 crosses reported, only the sandgrouse and the Himalayan snowcock have not yet been produced in numbers in captivity. Increasing consideration is being given to the production of well-reared birds conditioned for survival in the wild following release. In all 78,217 individuals, mostly pheasants, are reported to have been raised for trial liberation from breeders provided through the Foreign Game Introduction Program. These releases supplement 16,145 birds wild-trapped and sent to cooperating States for trial release. While, for most species under trial, it is still too early to evaluate results, some are evident. Iranian pheasants, black francolin and gray francolin have demonstrated the ability to survive, reproduce and increase substantially on release areas. Conversely, Indian sandgrouse and two other species have probably failed to adapt themselves and the semi-domestic strain of Reeve's pheasant is barely hanging on. Six other species are maintaining themselves in numbers sufficient to justify guarded optimism.
Author: Gardiner Bump
Publisher:
ISBN:
Category : Animal introduction
Languages : en
Pages : 60
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Book Description
State reports covering the propagation and trial liberation of foreign game birds are summarized from the period 1960 through 1963. Details are then provided in tabular form. Of the 21 species and subspecies and 6 crosses reported, only the sandgrouse and the Himalayan snowcock have not yet been produced in numbers in captivity. Increasing consideration is being given to the production of well-reared birds conditioned for survival in the wild following release. In all 78,217 individuals, mostly pheasants, are reported to have been raised for trial liberation from breeders provided through the Foreign Game Introduction Program. These releases supplement 16,145 birds wild-trapped and sent to cooperating States for trial release. While, for most species under trial, it is still too early to evaluate results, some are evident. Iranian pheasants, black francolin and gray francolin have demonstrated the ability to survive, reproduce and increase substantially on release areas. Conversely, Indian sandgrouse and two other species have probably failed to adapt themselves and the semi-domestic strain of Reeve's pheasant is barely hanging on. Six other species are maintaining themselves in numbers sufficient to justify guarded optimism.
Author: Glenn D. Chambers
Publisher:
ISBN:
Category : Animal introduction
Languages : en
Pages : 120
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Author: Glenn D. Chambers
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Wayne H. Bohl
Publisher:
ISBN:
Category : Animal introduction
Languages : en
Pages : 76
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Book Description
State Foreign Game Investigation Program reports covering the success of trial liberations from 1960 through 1968, and propagation 1966 - 1968 of foreign game birds are summarized with the details presneted in tabular form.
Author:
Publisher:
ISBN:
Category : Animal introduction
Languages : en
Pages : 61
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Author:
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 160
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Author:
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 1182
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Book Description
An index of woodcock reproductive success in 1961 and 1962 was obtained from age ratios in the hunting kill as determined from wings. For both seasons combined, hunters contributed 25,426 woodcock wings.
Author:
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 38
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Book Description
The Density Index of breeding doves declined in each management unit between 1967 and 1968 at the following rate: Eastern, 4 percent ; Central, 2 percent ; Western, 13 percent ; and the entire contiguous United States, 5 percent. Regression analyses suggest that the trend in populations has been downward in all units since 1958. Although biased to an unknown degree, data collected in conjunction with the Annual Waterfowl Mail Questionnaire Survey suggest that the harvest in the United States increased 28.9 percent and that dove hunters (who also purchased duck stamps) increased 31.5 percent during the period 1965-1966 through 1967-1968. The increase in harvest was due chiefly to an increase in hunter numbers.
Author: United States. General Land Office
Publisher:
ISBN:
Category : Natural resources
Languages : en
Pages : 730
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Author: United States. Department of the Interior. Library
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 740
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Book Description