What happened to the finch family in to kill a mockingbird as a result of the civil war?

Their wings got clipped. Then they were stuck in a cage and that's how we know why caged birds sing. It was so sad and that's why Jem and Scout killed mockingbirds. They were so sad because the bird kept repeating after them that they shot at it with the Cunningham's hunting rifle after Boo came out with a blanket to lay over the dead body of Mr. Avery. Smirk....