If you grow cherries (and want to have any to harvest), you probably will need to cover the tree(s) with bird netting. I find that any cherries left unprotected, even the “sour” or pie cherries that I grow, will soon be eaten by birds. On the other hand, my cranberries and black raspberries don’t seem to appeal to the birds.
The netting is a lightweight, black, plastic mesh with holes that are about 3/4 inch (18 mm) in size. What I use comes in fourteen foot (4 1⁄4 m) squares, so I need a few to cover the whole tree. We put it on the tree when the cherries begin to turn red, which was Wednesday (June 12th) this year. It’s a little difficult to do as the tree is taller than I am in places and the netting catches on branches, leaves, cherries, clothing, and pretty much anything else with which it comes into contact.
On Saturday, we added another piece of bird netting and used some clothespins to fasten the different pieces of netting together. We also used some plastic garden stakes (the same type I used to hold landscape fabric down) to pin the netting to the ground.