@article {41673,
	title = {Estimated survival rates of Canada Geese within the Atlantic Flyway},
	journal = {Journal of Wildlife Management},
	volume = {53},
	year = {1989},
	month = {1989},
	pages = {91},
	author = {Hestbeck, J. B. and Malecki, R. A.}
}
@article {Bruinderink1989,
	title = {The Impact of Wild Geese Visiting Improved Grasslands in the Netherlands},
	journal = {The Journal of Applied Ecology},
	volume = {26},
	number = {1},
	year = {1989},
	month = {apr},
	pages = {131},
	issn = {00218901},
	doi = {10.2307/2403656},
	url = {http://www.jstor.org/stable/2403656 http://www.jstor.org/stable/2403656?origin=crossref},
	author = {Bruinderink, G. W. T. A. Groot}
}
@article {Bazely1989,
	title = {Lesser Snow Geese and the Nitrogen Economy of a Grazed Salt Marsh},
	journal = {The Journal of Ecology},
	volume = {77},
	number = {1},
	year = {1989},
	pages = {24},
	issn = {00220477},
	doi = {10.2307/2260913},
	url = {http://www.jstor.org/stable/2260913?origin=crossref},
	author = {Bazely, D. R. and Jefferies, R. L.}
}
