Tent Caterpillars?

This afternoon, my youngest daughter was outside exploring in the backyard when she came upon this large web, covered almost completely in caterpillars. (This photo was taken later in the day, when they were headed back inside their "web tent" for the night.) I'm not 100% sure what kind of caterpillars they are, but they look like some sort of "Tent Caterpillar", a variety known for making this kind of web to protect themselves from predators.

They're considered a nuisance because they are voracious eaters, and can decimate the leaves of whatever tree they happen to be living in. They've taken up residence in a large bush on the side of our house, but since they're not bothering anyone, we're just going to leave them be and let them munch all they want. If you think you recognize what type of caterpillar this is, please leave a comment and let me know. Thanks!

Here's a close-up: