Birds of Indian Subcontinent

Waterfowl Collisions with Power Lines at a Coal-Fired Power Plant

Publication Type:Journal Article
Year of Publication:1978
Authors:Anderson, WL
Journal:Wildlife Society Bulletin
Date Published:1978
ISBN Number:00917648
Keywords:Anas, Anas crecca, Anas discors, Anas platyrhynchos, Anatidae, Fulica, Fulica americana, Fulica atra, Rallidae
Abstract:Between 200 and 400 waterfowl (0.2-0.4 percent of maximum number present) were killed each fall, 1973-75, by colliding with high-voltage transmission lines that cross the slag pit (32 ha of water) at the Kincaid Power Plant and adjacent Lake Sangchris (872 ha of water), central Illinois. Mallards (Anas platyrhynchos) constituted 37 percent of the victims, blue-winged teals (A. discors) 17 percent, and American coots (Fulica americana) 25 percent. Blue-winged teals were most vulnerable to collisions (0.549 casualty per 1,000 bird-days of use of the slag pit) and mallards least vulnerable (0.026). Factors contibuting to frequency of collisions were (1) number of waterfowl present, (2) weather conditions and visibility, (3) species composition or behavior of birds, (4) disturbance, and (5) familiarity of birds with the area. Power lines should not be built over water unless alternate routes do not exist; lines should not cross areas where waterfowl concentrate; and visibility of lines in problem areas should be enhanced.
Short Title:Wildlife Society Bulletin
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