Video was taken on my cell phone, from my front stoop, on a bright, sunny afternoon. i’m near a lake and river, so i'm used to seeing large birds, like herons. unless the distance was greater than i thought, i don't think this was a bird. i noticed this object moving from my right to left, ne to n basically, at a slow, but steady speed. it made no noise that carried to my position. my first thought was that it was a drone, due to the spherical shape, slow rate of horizontal travel, etc. there also appears to be either some spinning upon its own access or fluttering (perhaps bird wing flapping) motion. the object was 200 – 400 feet above the horizon, and perhaps 1/2 – 3/4 mile from my vantage point. i've never been unable to determine to which basic real-world category an observed object belongs, which is why i thought it might be a drone. i've never seen a drone in flight, in person, from a distance. i don't think it's anything other than something mundane, but would like to know your opinion(s).