So as I have mentioned in other posts this is my first year on my property, and I have noticed this tree that looks like it has cherries but they are very small and most are shriveled up. Is it a cherry tree?
Things that can effect fruit size are: the type of cherry tree it is, as in varietie or unique genetics: the growing conditions, like heat, nutrition and available water; and how long the fruit has been ripe on the tree under those conditions. If the fruit is a small variety, that grows under poor conditions; then as the fruit ripens, conditions go from bad to worse regarding heat or drought, that can cause ripe fruit to shrivel a bit too.
I hope that helps with the mystery of your cherry tree.