Yup, tent caterpillars for sure. There seems to be more than usual around this year.
Exactly what I was going to say - I cannot believe how many tents I am seeing around here this spring
!!! The sad thing is... they are killing the trees that they build the tents on here - the leaves are completely stripped off of most of them. We had 1 in our backyard last year, but they are ALLLLLL over here - as far as we have driven in any direction! Fortunetly, I haven't seen any in our yet... yet!