Six male Red-winged Blackbirds scattered throughout 2 marshes were vasectomized in
1971, and their females began laying infertile clutches in 5 days. However, of 39 clutches on …

A combination Purivox® Double-John carousel propane exploder and CO2 pop-up scarecrow
operated in synchrony was evaluated in five ripening sunflower fields in 1981 and 1982, …

METHODS We randomly selected 24 oil-variety sunflower fields ranging from 4 to 20 ha in
areas with a history of blackbird use in North Dakota. We studied 4 fields in 1979, 6 in 1980, …

… SHAKE, WF, and JL GUARINO. 1971. An evaluation of the bird repellents DRC-736 and
DRC-… STICKLEY, AR, JR., and JL GUARINO. 1972. A repellent for protecting corn seed from …

… and Forbes 1970), and in South Carolina (Stickley and Guarino 1972); and reduced …
and Forbes 1970), and by more than 99 percent (Stickley and Guarino 1972); and damage to …

Field tests were conducted in North Dakota in August, September and October 1981 to 1983
inclusive, to determine if decoy plantings of nine sunflower fields and one interplanted corn/…

… Jones for editorial assistance; JL Oldemeyer and GP Stone for statistical assistance; and
LJ Schoonover of the Sand Lake Refuge staff and staff members of the Section of Birds of the …

Methiocarb [4-(methylthio)-3,-5-xylyl N-methylcarbamate] was tested as a seed treatment for
repelling blackbirds and crows (Corvus sp.) from sprouting corn in South Carolina. The test …

Broadcasting 4-aminopyridine-treated baits in cornfields in an 8-section study area in
Brown County, South Dakota, in 1965 reduced damage by red-winged blackbirds (Agelaius …

A toxic, fright-producing chemical, 4-aminopyridine, was tested for alleviating damage by red-winged
blackbirds (Agelaius phoeniceus) to ripening corn in Brown County, South Dakota. …