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Baiting Starlings with DRC-1339 at a Cattle Feedlot
Jerome F. Besser, Willis C. Royall, Jr. and John W. Degrazio
The Journal of Wildlife Management
Vol. 31, No. 1 (Jan., 1967), pp. 48-51
Stable URL: http://www.jstor.org/stable/3798359
Page Count: 4
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Starlings (Sturnus vulgaris) have become a serious problem in cattle feedlots in the northern part of their wintering range in the West. The initial field trial of 3-chloro-p-toluidine hydrochloride (DRC-1339), a new slow-acting avicide, was made on an isolated starling population in Nevada in January, 1963. Ten pounds of 1 percent DRC-1339-treated poultry pellets, spread at a 2-acre cattle feedlot, reduced the population of 2,280 starlings by about 75 percent. Almost all that were killed took the bait within 2 hours after it was exposed. Most died in a coma within 48 hours, about half of them in the roost. Approximately 4 percent of the Brewer's blackbirds (Euphagus cyanocephalus) that fed at the lot were also killed, but seven other species of birds were evidently not harmed. No secondary hazards were noted.
The Journal of Wildlife Management © 1967 Wiley