@article {41080,
	title = {Owl broadcast surveys in the Foothills Model Forest, Alberta, Canada},
	year = {1997},
	institution = {USDA Forest Service General Technical },
	url = {http://www.ncrs.fs.fed.us/pubs/gtr/other/gtr-nc190/TAKATS.PDF},
	author = {Takats, D. Lisa and Holroyd, Geoffrey L.}
}
