vineyard animals

My question is what can I do with my vineyards, Merlot, Cabernet Sauvignon & Tempranillo. Different birds attack my vineyards and eat grapes in different areas. But often is the type: The Eurasian jay (Garrulus glandarius) The vineyards are located in the hills, Coastal field area up to 300m...

I'm thinking of enclosing a section of my vineyard to be the chicken coop and letting them wander around to eat insects. I've read about some wineries letting chickens out into the vineyard, but I'm wondering if they'll eat my grapevines when they're still really young?