My flock has found new food... What is it????

[Roberts2100]

My birds just found some new plant but I don't know what it is... Is it ok for them to eat?

 

[MuddyHillFarm]

Might be a muscadine grape or similar wild grapevine. Check this: http://en.wikipedia.org/wiki/Muscadine
Looks like the fruit is edible by lots of wildlife.