Make room for something that will work. Give the other to a friend, donate it to the local plant society, or put it in the chipper. Consider that the vegetative parts of the plants will provide for grazing animals such as deer and butterfly larva. 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.