DYI protecting grapes from critters

Hello....
This is the easy and inexpensive way to protect your grapes from birds, rats, sun burn, and for me; my chickens...
I know you can buy bags pre-made from that netting type material but, the birds can still pick through them and my chickens can see there are grapes inside, so they'll still try and jump and pick at them. All it takes is a paper bags and a stapler. The bags will cost you $1.00 for 40 at you local dollar store. It really doesn't take too long and I do it before they start to turn color and start attracting the flying grape thieves.