One sparrow hovering on dry grass is usual …

Dozens of sparrows on the street are less usual …

Why do the fly forth and back all together?

Are they interested in these berries?

No, they all fly to that pine tree… but for what?

Watch what some of them carry in their beaks … are they building up the biggest nest ever? Pictures shot with D800 + 70-200 VRII at 1/1250 sec – click to enlarge and enjoy the sharpness of these motion shots