Canada Geese

Canada Goose

After suffering from near-extinction in the early 1900's, the Canada Goose population has rebounded and now Winnipeg is faced with overpopulation. Due to the city's abundance of rivers and retention ponds, geese can thrive on the abundance of food, water, and available nesting spaces.

Canada Goose in a eutrophic pond.

Canada Geese typically excrete one pound of feces per day, thereby causing eutrophication and algal growth in Winnipeg's waterways. This results in economic stress in environmental cleanup costs. 

Resident Canada Geese can become aggressive.

As resident geese do not migrate long distances from cities, they become territorial and lose their fear of humans. Furthermore, they become more aggressive as people feed them and view people as food sources, instead of potential predators.

References

Adams, Lindsey, Ash. Urban Wildlife Management. Boca Raton: Taylor and Francis Group, 2006. 
Beardsley, John. Designing Wildlife Habitats. Washington, D.C.: Sheridan Books, 2013. 
Lallanilla, Marc. Population Control is One of Many Benefits of Hunting. Green Living, 2013. Retrieved from
 http://greenliving.about.com/od/greenlivingbasics/a/Benefits-Of-Hunting.htm
Manitoba Conservation, Government of Manitoba. MPI Statistics, Human-Wildlife Conflict (brochure), 2013. Retrieved from http://www.gov.mb.ca/conservation/wildlife/problem_wildlife/wildlife_vehicle.html
McCance, Dr. Erin. November 15, 2014, Winnipeg Wildlife Issues. Interviewed by Beauregard, Chung, Coker, and Wang. In person. Wallace Building, University of Manitoba. 
Pursell, Allen. Too Many Deer: a Bigger Threat to Eastern Forests than Climate Change? The Nature Conservancy, 2013. Retrieved from http://blog.nature.org/science/2013/08/22/too-many-deer/.
Rooney, Thomas. What do we do with too many whitetail deer? Actionbioscience, 2010. Retrieved from http://www.actionbioscience.org/biodiversity/rooney.html
Seunarine, Ian K. Strategies for Urban Wildlife Management in Manitoba: A Case Study of the City of Winnipeg, 1994.
Smith, Craven, and Curtis. Managing Canada Geese in Urban Environments A Technical Gide. Smith, A. E., S. R. Craven, and P. D. Curtis. Managing Canada geese in urban environment. Jack Berryman Institute Publication 16, and Cornell University Cooperative Extension, Ithaca, N.Y, 1999.Retrieved from
http://dspace.library.cornell.edu/retrieve/61/%E2%80%8E
Smithsonian. "Geese Involved In Hudson River Plane Crash Were Migratory." ScienceDaily. 2009. Retrieved from www.sciencedaily.com/releases/2009/06/090608125059.htm. 

White-tailed Deer-Odocoileus virginianus. Nature Works, 2013. Retrieved from www.nhptv.org/natureworks/whitetaileddeer.htm.