So, for the Eastern chipmunk alone, we can say that babies are born in March, April, May, July, August and September. Similarly, the late summer breeding season starts in June but lasts through August resulting in babies being born from July through September. However, in colder parts of the country the spring breeding season can start as late as April resulting in babies being born in May. In the warmer parts of the United States the early spring breeding season starts in February which results in baby chipmunks being born in March. This number can go up to 8 infants as well. At the end of this gestation period, they give birth to 2 to 5 infants. Following the mating cycle, females have a gestation period that lasts 31-35 days. The Eastern chipmunk has two breeding cycles a year one in in early spring and the other later in midsummer. The Eastern chipmunk is found across almost the entire eastern half of the United States and is the perfect example to demonstrate why there are so many answers to the question of when these animals give birth. Let’s take a look at some chipmunk species and when they tend to have their babies: Eastern Chipmunk Breeding Cycle Some species of chipmunks have a second litter of babies in September.
However, given the diverse geographic climates in which various chipmunk species are found, the Spring season can extend into later months with babies being born in the months of May and June. One of the questions people often ask about these animals is, “When do chipmunks have babies?” The quick answer is that chipmunks have babies in the Spring, typically in the March-April timeframe. One of these is their breeding cycles, which is precisely the reason for this article!. These members of the chipmunk family can be distinguished from each other in several ways. As I have mentioned in my earlier articles, you’ll find 25 different species of chipmunks in North America. Of course, this does not make them any less diverse amongst their other rodent friends.
The chipmunk is among the few rodents in the world whose presence is largely limited to North America (Except for the Siberian chipmunk).