On Feb 13, 2008, Malus2006 from Coon Rapids, MN (Zone 4a) wrote:
Bugguides.com quotes this as one of the most common species East of the Great Plains. Unlike Bald Face Hornet, they nest underground. Common Yellow Jacket is the only other common species that nest underground. Internet reports seem conflicted on which species is the most common, Common Yellow Jacket, Eastern Yellow Jacket, and German Yellow Jacket. So I'm guessing they are in equal numbers for now. They nest in old rodent tunnels and nests, rotten wood piles or stumps. They never nest exposure to the elements.