Martell, M., J. Schladweiler, and J. Nibe. 1990. Minnesota burrowing owl conservation. Report submitted to the Minnesota Department of Natural Resources. 20 pp.
The Raptor Center at the University of Minnesota (TRC) and the Minnesota Department of Natural Resources Nongame Program (TNGP) began their sixth year of Burrowing Owl conservation activities in 1990. Research, management, and education continued to be the foci of the project. Research activities designed to study the natal-return rate, nest-site fidelity and location of wintering grounds were begun in South Dakota and Minnesota. Locating and documenting all nestings in Minnesota remained a top priority. Reintroduction of owls, which began in 1985, was continued at a new hack site in Rock County. Use of the Lac Qui Parle County site was discontinued since most of the known Burrowing Owl nests used since 1988 were located in Rock (4) and Pipestone (2) counties.