DId a short flight last evening right about sunset time. Took off and within a few seconds I had about a dozen bats flying around the Phantom. When I went higher they stopped but when coming back down they reappeared again. They would fly at the drone but did not hit it. I live ina rural area and have seen bats flying around but never that many in one spot. Anyone else ever have this happen? Is it the noise or the ultrasonic ping from the VPS that attractes them?