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Full-Text Articles in Physical Sciences and Mathematics
Evaluation Of Trapping To Reduce Monk Parakeet Populations At Electric Utility Facilities, Eric A. Tillman, Ann C. Genchi, James R. Lindsay, James R. Newman, Michael L. Avery
Evaluation Of Trapping To Reduce Monk Parakeet Populations At Electric Utility Facilities, Eric A. Tillman, Ann C. Genchi, James R. Lindsay, James R. Newman, Michael L. Avery
United States Department of Agriculture Wildlife Services: Staff Publications
Through accidental and intentional introductions, the monk parakeet, native to South America, is now established in several parts of the United States. In Florida, it occurs in 21 of 67 counties. Monk parakeets build a bulky nest structure of sticks, and they often build on electric utility substations and support structures for distribution and transmission lines. This nesting activity is incompatible with reliable electric service because nest material creates short circuits that cause power outages. Nest removal by electric utility personnel is ongoing but provides only short-term relief, as buds readily rebuild their nests. In h s study, we evaluated …
Bird Depredations In Uruguayan Vineyards, Ethel N. Rodriguez, Guadalupe Tiscornia, Mark E. Tobin
Bird Depredations In Uruguayan Vineyards, Ethel N. Rodriguez, Guadalupe Tiscornia, Mark E. Tobin
United States Department of Agriculture Wildlife Services: Staff Publications
Many species of birds in Uruguay frequent vineyards and damage grapes, both species that are considered crop pests and species that are protected by law because their conservation and protection are desirable. We surveyed 70 farmers in the Department of Canalones, the main grape growing region in Uruguay, to determine their perceptions about the nature and severity of bud depredations and the methods being employed to reduce such damage. Sixty-seven percent of respondents reported receiving damage from birds. Bird depredations were considered a serious problem by 58% of respondents, a moderate problem by 19% of respondents, and a minor problem …
Response Of Canada Geese To A Dead Goose Effigy, Thomas W. Seamans, Glen E. Bernhardt
Response Of Canada Geese To A Dead Goose Effigy, Thomas W. Seamans, Glen E. Bernhardt
United States Department of Agriculture Wildlife Services: Staff Publications
The North American Canada goose population increased at a rate of 10.5% per year, 1966 - 2001. Canada geese rank has the third most hazardous species in regards to collisions with aircraft. Sound Canada goose management tools are critical for a safer airport environment. We conducted field evaluations of a Canada goose effigy during the breeding season with territorial pairs and in late summer with post-fledging flocks to determine if geese were deterred by the effigy. No difference in territorial pairs was found between pretreatment and treatment periods for Canada geese when goose effigies were placed within their territories. In …
Evaluation Of Different Rice Baits And Chemicals To Improve Efficacy Of 2% Drc-1339 To Reduce Blackbird Damage To Rice, Patricia A. Pipas, John L. Cummings, Jerry C. Hurley, Karen H. Sheffer
Evaluation Of Different Rice Baits And Chemicals To Improve Efficacy Of 2% Drc-1339 To Reduce Blackbird Damage To Rice, Patricia A. Pipas, John L. Cummings, Jerry C. Hurley, Karen H. Sheffer
United States Department of Agriculture Wildlife Services: Staff Publications
Blackbird damage to sprouting rice can be locally severe and costs Louisiana growers an estimated $4 million/year and Texas growers $4.4 million/year. DRC-1339 blackbird baiting programs probably will continue until available alternative control techniques (i.e., repellents) become available. We conducted 3 studies to evaluate different rice baits and chemicals to improve efficacy of DRC-1339 for use at staging areas. During the first study, individually caged red-winged blackbirds preferred untreated medium grain brown rice over long grain brown rice, rough rice, or rough rice soaked with sodium bisulfite. Of birds offered only medium (control), long, rough, and rough rice soaked with …
Using Geographic Information System (Gis) Software To Predict Blackbird Roosting Locations In North Dakota, Ryan L. Wimberly, Tony A. Slowik, H. Jeffrey Homan, Linda B. Penry
Using Geographic Information System (Gis) Software To Predict Blackbird Roosting Locations In North Dakota, Ryan L. Wimberly, Tony A. Slowik, H. Jeffrey Homan, Linda B. Penry
United States Department of Agriculture Wildlife Services: Staff Publications
Cattail stands provide roosting and staging areas for large congregations of blackbirds in North Dakota in late summer and early fall. Since 1991, the U.S. Depamnent of Agriculture, Ammal and Plant Health Inspection Service, Wildlife Services (WS) program has conducted a cattail management program in North Dakota to alleviate blackbird damage to ripening sunflower. To extend the capabilities of the program, a geographical mformation system (GIS) will be incorporated to help WS personnel find blackbird roosts more effectively. We will use the GIs to construct field maps showing the association between areas of moderate to hgh sunilower damage (>5%) …