Most 'bugs' are a vital component of the landscape and are NOT troubling pests. They are crucial as pollinators and as food for wildlife. Hickories are best for gray squirrels and fox squirrels. Oaks provide acorns in different sizes, however, most acorns are only eaten by jays or turkeys. Little birds don't eat large fruit.
Birds really enjoy weed and wildflower seeds.
Have fruit that ripens throughout the year. Not every plant produces the same amount of food every year. However, the Florida privet doesn't produce nearly as many berries so a grouping of three or more may be needed in order to provide adequate berries for the birds. Oaks have a heavy crop of acorns, but only about every fourth year. Another consideration is the age at which your plants will produce fruit.