Is there a bright light source near the cam? If yes, then most likely a bug/bird/bat. If no light then we may need to move on to a different
possibility. Its speed is relative to the distance from the cam and if we cant determine its distance there is absolutely no way we can
know
its speed, we can only speculate it.
Its brightness is also dependent on whether or not there is a bright light source near the cam and if the object is very close to that light or not. I
say that distance will not be determined with the video provided. It can be perceived as both far and near depending on the observer...
Some will say bug and others will say most righteously not and in the middle the truth will lay...none of us will know what it is but some of us will
agree upon what it most likely is and be happy with that.
edit on 27-7-2011 by Lost_Mind because: (no reason given)