478 
THE WILSON JOURNAL OF ORNITHOLOGY • Vol 123, No. 3, September 2011 
the world. Houghton Mifflin, Boston, Massachusetts, 
USA. 
Gross. S. J. and T, D. Price. 2000. Determinants of the 
northern and southern range limits of a warbler. 
Journal of Biogeography 27:869-878. 
Hasselbud, K. and M. J. Bechard. 2007. Male Northern 
Goshawk home ranges in the Great Basin of south¬ 
central Idaho. Journal of Raptor Research 41:150-155. 
Houston. C. S. and B. Terry. 2003. Wing-tagging Turkey 
Vultures. Blue Jay 61:204-213. 
Houston, c:. S., M. J. Stoffel, and A. R. Smith. 2002. 
Three Turkey Vulture pairs nest in Saskatoon bird 
area. Blue Jay 60:206-209. 
Houston, C. S„ B. Terry. M. Blom, and M. J. Stoffel. 
2007. Turkey Vulture nest success in abandoned 
houses in Saskatchewan. Wilson Journal of Ornithol¬ 
ogy 119:742-747. 
Kelly, N. E., D. W. Sparks, T. L. Devault, and O. E. 
Rhodes Jr. 2007. Diet of Black and Turkey vultures in 
a forested landscape. Wilson Journal of Ornithology 
119:267-270. 
Kernohan. B. R., r. a. Gitzf.n, and J. j. Millspaugh. 
2001. Analysis of space use and movements. Pages 
125 166 in Radio trucking and animal populations 
(J. J. Millspaugh and J. M. Marzluff. Editors). 
Academic Press, San Diego, California, USA. 
Kirk, D. A, and A. C GOSLER. 1994. Body condition 
varies with migration und competition in migrant and 
resident South American vultuies. Auk J11:933-944. 
Kirk, D. A. and M. J, Mossman. 1998. Turkey Vulture 
(Cat hurt cs aura). The birds of North America. 
Number 339. 
Mandel. J. T„ K. L. Bildsiein. G. Bohrer, and D. W. 
Winkler. 2008. Movement ecology of migration in 
Turkey Vultures. Proceedings of the National Acad¬ 
emy of Sciences of the USA 105:19102-19107. 
Mandel. J. T., G. Bohrer. D. W. Winkler. D. Barber, C. 
S. Houston, and K. L. Bildstein. 2011. Migration 
path annotation: cross-continental study of migration- 
flight response to environmental conditions. Ecologi¬ 
cal Applications 21:In press. 
McLoughlin, p. d. and s. H. Ferguson. 2000. A 
hierarchical pattern of limiting factors helps explain 
variation in home range size. Ecoscience 7:123-130. 
Mundy, P. D„ D. Butchart. J. Ledger, and D. S. Piper. 
1992. The vultures of Africa. Academic Press. New 
York. USA. 
National Farmers Union (Canada). 2008. The farm 
crisis and the cattle sector, http://www.nfu.ca/briefs/ 
2008/livestock/EXECSlJMFINAL.pdf 
Peery, M. Z. 2000. Factors affecting interspecies variation 
in home-range size of raptors. Auk 117:511-517. 
R Foundation for Statistical Computing. 2009. R: a 
language and environment for statistical computing. R 
Development Core Team, R Foundation for Statistical 
Computing, Vienna, Austria. 
Rea A. M. 1983. Cathartid affinities: a brief overview, 
ages 26-54 in Vulture biology and management 
(S. R. Wilbur and J. A. Jackson, Editors). University of 
California Press, Los Angeles. USA. 
Rogers, A. R. and A. P. Carr. 1998. HRE: the home 
range extension for ArcView User's Manual. Ontario 
Ministry of Natural Resources, Thunder Bay. Canada. 
Rolanixi, A. 2002. On the ecology of home range in birds. 
Revue d’ficologic-l-a Terre et la Vie 57:53-73. 
Schoener. T. W, 1981. An empirically based estimate of 
home range. Theoretical Population Biology 20:281- 
325. 
Silverman, B. W. 1986. Density estimation for statistics 
and data analysis. Chapman and Hall. London. United 
Kingdom. 
SMITH. A. R. 1996. The biotic regions of Saskatchewan. 
Pages 17-22 in Atlas of Saskatchewan birds. Special 
Publication Number 22. Saskatchewan Natural History 
Society. Regina, Canada. 
Steenhof, K.. M. R. Fuller, M. N. Kochert, and K. K. 
Bates. 2007. Long-range movements and breeding 
dispersal of Prairie Falcons from southwest Idaho. 
Condor 107:481-496. 
STEWART, P. a. 1977. Migratory movements and mortality 
rales of Turkey Vultures. Bird-Bunding 48:122-124. 
Swihart. R. K. and N. A, Slade. 1985a. Influence of 
sampling interval on estimates of home-range size. 
Journal of Wildlife Management 49:1019-1025. 
Swihart, R. K. and N. A. Sladr. 1985b. Testing tor 
independence of observations in animal movements. 
Ecology 66:1176-1184. 
TaRDIF. L.-P. and ASSOCIATES. 2003. Collisions involving 
motor vehicles and large animals in Canada. Final 
Report to Transport Canada Road Safety Directorate. 
L.-P. Tardif and Associates Inc.. Nepean, Ontario, 
Canada. http.V/www.wildlifcaccidents.ca/docs/ 
D6ACDB93DFA BC8C6.dbf 
Tenney, M. K. 1986. A life history study' of Turkey 
Vultures along the Root River Valley in Fillmore 
County. Minnesota. Thesis. St. Cloud State University, 
St. Cloud, Minnesota, USA. 
Thorpe. J. 1999. Natural vegetation. Pages 133-137 in 
Atlas of Saskatchew an (K. Fung. Editor). University of 
Saskatchewan. Saskatoon. Canada. 
White. G. C. and R. A. Garrott. 1990. Analysis of 
wildlife radio-tracking data. Academic Press. San 
Diego. California, USA. 
Wilbur. S. R. 1983. The status of vultures in the Western 
Hemisphere. Pages 113-123 in Vulture biology and 
management (S. R. Wilbur and J. A. Jackson. Editors). 
University of California Press. Los Angeles, USA. 
Wilbur. S. R. and J. A. Jackson. 1983. Vulture biology 
and management. University of California Press, 
Berkeley. USA. 
WORTON. B.‘ J. 1989. Kernel methods for estimating the 
utilization distribution in home-ranse studies Ecology 
70:164-168. 
Worton. B. J. 1995. Using Monte Carlo simulation to 
evaluate kernel-based home range estimators. Journal 
of Wildlife Management 59:794-800. 
