I acquired 2 grape cuttings (1 Concord and 1 Niagra)from my Grandfather

before he passed and I planted them on the side of my house.

I built a large Pergola and trained the plants up and over it.


Finally, this year I have a ton of grapes growing (25-30 bunches).
Being a novice, and not being able to find information elsewhere on the

web, I figured I would try here.


1) How do I know when to harvest the grapes (I realize that it is in
the Fall)?


2) What is the best way to keep birds from swiping my crop?


Thanks in advance for any help you could provide