Since it was leaves this time I'm betting on groundhogs
...rabbits usually like only the most tender parts. If I absolutely had to get beans I'd leave the turkeys out 24/7 to keep the 'hogs away , but I can pick up beans at an organic farm down the road with far less hassle. Turkeys will wander (noisily!) all over our metal roofs if left to their own devices.
We're part of their flock, you see.