Swans have announced a North American tour in support of their new album “Birthing” (out May 30). Little Annie & Paul Wallfisch will open. Tour Dates: 09/04 Philadelphia, PA – Union Transfer 09/05 Washington, DC – The Howard Theatre 09/06 Norfolk, VA – The NorVa 09/09 Dallas, TX – Granada Theater 09/10 Austin, TX –…