Alerting the birds
Article Abstract:
Collisions of birds with power lines is a major cause of death for some endangered species such as whooping cranes. An experiment involving larger static wires did not solve the problem, and line marking has been found to be more effective. The Ad Hoc Crane Study Group initially researched the problem, followed by the Wyoming Cooperative Wildlife Research Unit. The group became the Avian Power Line Interaction Committee (APLIC), which has sponsored research. APLIC has also published work relating to migrant birds and power lines, raptors and power lines, and reduction of bird collisions, the last being published in 1997.
Publication Name: Endangered Species Update
Subject: Zoology and wildlife conservation
ISSN: 1081-3705
Year: 1997
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Are avian hematocrits indicative of condition: American kestrels as a model
Article Abstract:
The disease status and nutritional condition of birds can be assessed by measuring blood variables, such as hematocrit, but few studies show the link between condition and hematocrit. A new study designed to test these assumptions looks at American kestrels in Saskatchewan to determine whether variations in health and condition are related to hematocrit levels. The findings suggest that hematocrit levels in kestrels differ with variables such as time of day, ambient temperature and the level of infection of blood parasites. It is concluded that the use of hematocrits to assess condition could lead to wrong conclusions.
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 1997
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Effectiveness of avian predator perch deterrents on electric transmission lines
Article Abstract:
Point transect surveys and perching-duration observations of corvids are conducted to determine that although the perch deterrents did not prevent perching, the perching duration of the raptors on the deterrent was reduced compared to other perching substrate. It is concluded that further monitoring would reveal long-term effects and distinguish perching behavior specific to different species of avian predators.
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 2007
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