As spring tentatively unfolds around the state, (and the more diligent of us celebrate International Migratory Bird Day - 5/11) the familiar nuisance of black flies also reappears. And as annoying as we find them, as we’ve discussed earlier, they are a sign of healthy eco-system. The presence of black flies means there are sources of clean fresh running water nearby. Black flies are also among the explosion of insect protein in the northeast this time of year, which signals the arrival of more