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Physical Sciences and Mathematics Commons

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Environmental Sciences

University of Nebraska - Lincoln

2002

Effigy

Articles 1 - 2 of 2

Full-Text Articles in Physical Sciences and Mathematics

Monk Parakeet Management At Electric Utility Facilities In South Florida, Michael L. Avery, Ellis C. Greiner, James R. Lindsay, James R. Newman, Stephen Pruett-Jones Feb 2002

Monk Parakeet Management At Electric Utility Facilities In South Florida, Michael L. Avery, Ellis C. Greiner, James R. Lindsay, James R. Newman, Stephen Pruett-Jones

USDA Wildlife Services: Staff Publications

The monk parakeet (Myiopsiirta monachus) is native to South America but has become established in several locations throughout the United States through purposeful and accidental releases. The species is unique among parrots in that it is not a cavity-nester, but instead it builds a bulky nest structure of sticks. Often, in its native range and in the United States, the parakeet selects a electric utility structure as a nest site. Material from the nest then can cause short-circuits that result in damage to the utility structure and a subsequent power outage. In south Florida monk parakeet damage and …


Dispersing Vulture Roosts On Communication Towers, Michael L. Avery, John S. Humphrey, Eric A. Tillman, Kimberly O. Phares, Jane E. Hatcher Feb 2002

Dispersing Vulture Roosts On Communication Towers, Michael L. Avery, John S. Humphrey, Eric A. Tillman, Kimberly O. Phares, Jane E. Hatcher

USDA Wildlife Services: Staff Publications

Communication towers provide attractive roost sites for Black (Coragyps atratus) and Turkey vultures (Cathartes aura). The birds’ roosting activity creates problems, however, for tower operators, nearby businesses, and adjacent homeowners. To alleviate these problems, at six sites in northern Florida we evaluated the effectiveness of suspending vulture carcasses or taxidermic effigies from towers to disperse vulture roosts. In each case, vulture numbers decreased immediately after installation of the stimulus, and roosts declined 93-100% within nine days. The effect was independent of the composition of the roost and occurred regardless of which vulture species was used as …