I always thought voles looked like hamsters without stripes.
Anyway.... things disappear? Or just simply fail to thrive? Did the hydrangea still have roots? Did you find any tulips that were chewed on? A vole would not stay in a 3 foot x 3 foot area - he would be all over your yard. I doubt a tulip would be a voles first choice as dinner but they do like grass roots.
I am wondering if you are dealing with something else. Nematodes come to mind. What did the roots of the hydrangea look like after it died?
Daisy
