Author 'Boucher Marc dit de Meilh' (Id 217087 ) : The flight of the heron. That is, it is high in the air and begins to pick up speed. Not obvious, but I still triggered at the right moment even if it was done to 'blindly' because I was not expecting the direction it would take having regard to, in effect, the distance. (I've taken with a 300 mm X 1, 5 = 450 mm x 1. 4 zoom the sensor.) Ph : Marc de Meilhan.