Milsurp After Hours

The migration flight path for Cranes passes right over our house and so we see great skeins of birds passing over at this time of year, going south.
They arrive from the north and then break formation to fly around in confused circles before one of more take the decision to set off south again and they all fall into line again and off they go............
You know they are Cranes and not Strokes because they make such a din! Storks are silent as they fly...............