Photo by Greg Nash We get a lot of Three Stars artists who either came from somewhere else or ultimately go somewhere else. With duo Birdlips, our motivation was to catch them while we can. Although both Cliff Usher and Lindsay Pitts grew up in Northern Virginia, when we first caught wind of them, they resided in Charlottesville, and the conversation we had with them suggested that their current lcoation, here in D.C., is…