Judging by the damage high up on the plants, I'm sure it's deer. Some stalks have been bitten off about 3ft off the ground. Plus, the cloven hoof prints are hard to miss!
I reinforced the fences yesterday, and there wasn't any new damage that I could tell today. That's two days without any noticeable damage. Maybe the changed fence setup helped. For now.
The ends of the chewed stalks will have a greenish wet look to them soon afterwards. Then it callouses over and turns white then gray or a dull green. The plants will recover given a chance. What's also aggravating is the unripe tom's that are also pilfered, so we have to wait for new fruits to develop.
I'm not saying we don't have groundhogs here, but I don't think they are doing any damage. Rabbits are seen around here a lot, and I think they've been in the beans, but nothing else.
Sorta OT, but my wife says they call groundhogs, "whistlepigs" in these parts. That's because they whistle when in danger, or are apprehended.