A young leek chewed below ground in my front raised bed was the first sign. The second was a wilting red-veined sorrel in the same bed. Examined, the roots had been nipped off in a straight line.
Who would have thought that a vole (presumably) would have escaped all of the neighborhood cats to burrow into my raised bed, and eat a leek and (very sour) sorrel roots?
Maybe that's what's happened to my seeds/seedlings in that bed (I've sowed climbing squash and beans, and there's been limited evidence of seedlings, at least so far).
OK, I'm a wildlife-friendly gardener, but voles in my vegetables, and a bear flattening the perennial leeks down below, along with the woodchuck that now seems to be creeping up from the ravine and nipping on the tomatoes! Not normally a woodchuck favorite.