Do white tail deer and mule deer breed together?

They might. However, the breeding season for Axis (Chittal) deer and White-tail deer are opposite, with Axis deer rutting from May to August and White-tail from October to December. Though a rutting Axis deer may try to mate with a not-in-season white-tail doe, or vice versa, the chance of producing offspring may be nil. Axis deer are actually more closely related to the American Elk than White-tailed Deer, and offspring, though not recorded, may not be genetically viable.