GatherBird Copy Large Files info: GatherBird Copy Large Files is a program that allows you to copy files over unreliable and slow network connections. It is particularly useful when copying files with Window Explorer fails due to the size of the file and instability of the network. Copy Large Files insures the copied file is identical to the original. Copy Large Files supports a resume feature. Just select the file you want to copy, the destination directory, and hit the Copy button.