<P> In addition to movements related to available shelter and food , the breeding cycle is important in understanding deer behavior . The `` rut '' or mating season usually begins in the fall as does go into estrus for a period of a few days and males become more aggressive , competing for mates . Does may mate with more than one buck and go back into estrus within a month if they did not become pregnant . The gestation period is about 190 -- 200 days , with fawns born in the spring , staying with their mothers during the summer and being weaned in the fall after about 60 -- 75 days . Mule deer females usually give birth to two fawns , although if it is their first time having a fawn , they often have just one . </P>
<P> In addition to movements related to available shelter and food , the breeding cycle is important in understanding deer behavior . The `` rut '' or mating season usually begins in the fall as does go into estrus for a period of a few days and males become more aggressive , competing for mates . Does may mate with more than one buck and go back into estrus within a month if they did not become pregnant . The gestation period is about 190 -- 200 days , with fawns born in the spring , staying with their mothers during the summer and being weaned in the fall after about 60 -- 75 days . Mule deer females usually give birth to two fawns , although if it is their first time having a fawn , they often have just one . </P>
when do mule deer give birth in colorado
when do mule deer give birth in colorado
in the spring
in the spring