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Blumton, A.K., Fraser, J.D., Young, R.W. et al. Pesticide and PCB residues for loggerhead shrikes in the Shenandoah Valley, Virginia, 1985–88. Bull. Environ. Contam. Toxicol. 45, 697–702 (1990). https://doi.org/10.1007/BF01700988
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DOI: https://doi.org/10.1007/BF01700988