A Late Born White-tailed Deer, Odocoileus virginianus, Fawn in Southcentral Wisconsin

Christopher N. Jacques, William E. Ishmael, Timothy R. Van Deelen, Robert E. Rolley


Published reports of peak breeding and parturition dates for White-tailed Deer (Odocoileus virginianus) indicate that deer in northern regions typically breed during November and give birth during late May and early June. However, we report a late-born White-tailed Deer fawn killed by a vehicle between 12-13 March 2007 in south central Wisconsin. Morphology measurements and body weight indicated the individual was 63-76 days old, was born between 26 December 2006 and 8 January 2007, and was conceived between 14-27 June 2006. To our knowledge, this observation represents the latest documented breeding activity in northern deer populations.


White-tailed Deer; Odocoileus virginianus; parturition; breeding; conception; phenology; Wisconsin

Full Text:


DOI: http://dx.doi.org/10.22621/cfn.v121i3.487

Volumes that are more than six years old are freely available courtesy of the Biodiversity Heritage Library.


Questions or problems with the website? Contact William Halliday (info -at- canadianfieldnaturalist -dot- ca).