@article {35548,
	title = {Observations of the Northern Hawk owl in Alberta. In : R. W. Nero, R. J. Clark, R. J. Knapton, and R. H. Hamre (eds.) Biology and conservation of northern forest owls : symposium proceedings},
	volume = {General Technical Report RM-142},
	year = {1987},
	institution = {USDA Forest Service },
	author = {Jones, E. T.}
}
