It's the gods honest truth Walter.Maybe it s.Time of year? Who knows with certainty? Old birds know what's in front of them every time they go in a basket.However it's not always the case as regards youngsters.But rest assured they know by first race.life is for living not just surviving.Bloody birds don't no who they are or where they are going to.Blind panic takes over and they might fly  100s  miles off course! Out of interest has everyone  That's got doos missing this race feeding on the light side?