An online resource based on the award-winning nature guide – maryholland505@gmail.com

Eastern Chipmunks Building Nests and Giving Birth

Eastern chipmunks typically have two litters a year, each consisting of 1 to 8 young (4 to 5 is usual). They give birth mid-April to mid-May and mid-July to mid-August.  The chipmunk in the accompanying photograph has a mouth full of dead leaves which it is carrying back to its underground tunnel where it makes a bulky, leaf nest for its young.  When they are born, the young chipmunks are roughly 2 ½ inches long and weigh .11 oz.  In about a month start looking for tiny chipmunks – the young are weaned and start venturing out of their tunnels in mid-June.

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