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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
Published by: Wiley on behalf of the Wildlife Society
DOI: 10.2307/3798359
Stable URL: http://www.jstor.org/stable/3798359
Page Count: 4
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Baiting Starlings with DRC-1339 at a Cattle Feedlot
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Abstract

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.

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