Looks like they're spilling in from the motorway into those barns. Probably because there's some dead animal carcass in them or something. When they have their joy getting in, they probably just carrying on walking towards the farm.
Μάλλον έρχονται απ το δρόμο και μαζεύονται στις αποθήκες, επειδή υπάρχουν ψόφια ζώα εκεί μέσα.