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Vulture Information (PDF) More Information In addition to identifying, developing, and testing United States Department of Agriculture new methods for dispersing problem vultures, NWRC Animal and Plant Health Inspection Service scientists are also determining the age structure of Program Aid No. 1860 black vulture populations and documenting habitat use and movements of vultures. For more information regarding NWRC’s vulture research, please visit our Solutions Through Science Web site at <http://www.aphis.usda.gov/ws/nwrc>. NWRC headquarters in Fort Collins, CO. WS Office Phone Numbers Reducing Damage Caused by Vultures For assistance on wildlife damage issues in your State, please call the WS program’s toll-free number About Wildlife Services’ National Wildlife at 1–866–4USDAWS (1–866–487–3297) or one of the Research Center numbers listed below. At headquarters (Riverdale, MD): As part of the WS program of the U.S. Department Operational Support Staff of Agriculture’s Animal and Plant Health Inspection (301) 734–7921 Service, NWRC is a leader in providing science- based solutions to the complex issues of wildlife In the field: damage management as related to agriculture, NWRC headquarters (Fort Collins, CO) property, human health and safety, invasive species, (970) 266–6000 and threatened and endangered species. NWRC NWRC Gainesville, FL, Field Station scientists strive to find solutions that are biologically (352) 375–2229 sound, environmentally safe, and socially acceptable Eastern Regional Office (Raleigh, NC) for use in resolving wildlife damage-management (919) 855–7200 problems throughout the United States and abroad. Western Regional Office (Fort Collins, CO) Often, the WS program’s operational personnel assist (970) 494–7443 NWRC scientists in developing and evaluating new management tools and methods. Photo credits: The images in this leaflet were taken by USDA employees or are part of the APHIS image collection. NWRC employs more than 160 scientists and support staff at its headquarters in Fort Collins, The U.S. Department of Agriculture (USDA) prohibits discrimina- CO, and at field stations throughout the United tion in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital States. NWRC’s scientists have expertise in a wide status, familial status, parental status, religion, sexual orientation, range of disciplines, including animal behavior, genetic information, political beliefs, reprisal, or because all or part wildlife biology, wildlife sensory biology, chemistry, of an individual’s income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons immunology, epidemiology, statistics, population with disabilities who require alternative means for communication modeling, genetics, toxicology, and veterinary of program information (Braille, large print, audiotape, etc.) should medicine. contact USDA’s TARGET Center at (202) 720–2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250–9410, or call (800) 795–3272 (voice) or (202) 720–6382 “Solutions to problems depend upon (TDD). USDA is an equal opportunity provider and employer. knowledge which only research can provide.” Issued March 2006 Edwin R. Kalmbach, first Director for the predecessor of the NWRC (1940–54) http://www.aphis.usda.gov/ws/nwrc Problem are found primarily in Texas and the southeastern Understanding Impacts to Livestock United States, although their range is expanding Because of increasing reports of vulture predation Vultures play an important role in ecosystems by northward. on newborn livestock, NWRC scientists are cleaning up animal carcasses, but vultures also working to identify the factors associated with cause problems in both rural and urban settings. In Turkey vultures are almost exclusively scavengers, vulture predation on livestock. In a survey of recent years, vulture populations have increased as relying upon their very sensitive sense of smell and Florida livestock producers, larger farms reported these adaptable birds have adjusted to higher levels good eyesight to locate food. Black vultures, on the more vulture depredation problems than smaller of human activity. As a result, the birds are coming other hand, rely solely on visual cues to find food operations. Constant vigilance, sound husbandry into ever more conflict with people. and also attack and kill live animals. practices, and persistent harassment are the most effective means to protect livestock from black Vultures often damage residential and business Adult turkey vultures have blackish-brown feathers vultures. However, such a regimen is usually more property. Their droppings can kill trees and create and red heads. Black vultures have black feathers difficult to maintain on larger livestock operations. unsanitary and unsafe working conditions at power and gray heads and have a distinctive white patch plants, refineries, and communication towers. near the ends of their outstretched wings. To gain a better understanding of vulture impacts on Their aggressiveness unsettles park users and livestock, NWRC scientists are conducting research homeowners. Vultures harass and kill livestock. In to (1) develop a population model for black vultures Science-Based Solutions Taxidermic (left) and artificial vulture effigies are used flight, they can be a danger to aircraft. that can be used to evaluate potential management to disperse vultures from their roosts. options, and (2) analyze vulture movement patterns To help resolve vulture-related problems, scientists and roosting activity using geographic information As complaints multiply, pressure grows on wildlife at the NWRC Gainesville, FL, field station are system (GIS) techniques. biologists to develop safe, effective ways to manage conducting research with both captive and free- vulture populations that will both maintain healthy ranging vultures to better understand the ecology, numbers of birds and reduce conflicts and damage. behavior, and impact of these birds and their To further convince vultures to leave, it is sometimes The National Wildlife Research Center (NWRC)— responses to management practices. In particular, necessary to use pyrotechnics or handheld lasers in the research arm of the Federal Government’s scientists are investigating methods for dispersing addition to the effigy. The bright beams of the lasers Wildlife Services (WS) program—is hard at work on vultures from problem roosts and preventing do not cause physical harm but irritate the birds and NWRC scientists America’s “vulture problem.” This leaflet describes property damage. Scientists are also learning more cause them to move to other locations. Research continue to investigate how NWRC researchers are using science-based about the impact the birds have on livestock. has shown that application of lasers can cause vulture impacts to approaches to address human–vulture conflicts. vultures to leave a roost for a night, but lasers’ use livestock. Dispersing Roosts alone will not result in permanent abandonment of Identifying Vultures Vultures roost in trees and on manmade structures the roost. such as buildings and towers. Many problems Two species of vultures live in the United States. associated with vultures can be successfully Preventing Property Damage Turkey vultures (Cathartes aura) are found almost resolved by dispersing the birds from their roosts. When vultures loaf on houses and other structures, nationwide. Black vultures (Coragyps atratus) they damage property by pecking, tearing, and Research conducted by NWRC scientists has defecating. To help prevent damage, NWRC demonstrated that proper installation of a vulture scientists tested the effectiveness of several effigy almost always causes abandonment of the commercially available perching deterrents. Four roost within 3 to 5 days. The effigy is either a of these—an electrified track; sharp, dense metal taxidermic mount of a vulture or a commercially spikes; a cylindrical rolling perch; and a motion- available artificial likeness. activated sprinkler—proved very effective in preventing vultures from perching on roofs in test pens. Installation of any one of these devices, particularly on the ridgeline of a roof, should alleviate most problems homeowners experience with nuisance vultures. Black vulture (left) NWRC scientists are investigating nonlethal methods and turkey vulture. for preventing vulture damage to houses and other structures..
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