ID Required

ID Required

Observation - ID Required. Description: I observed this fly in the back garden sitting in a bush. It stayed there for quite a while simply blowing bubbles. One after the other. I've never seen this behaviour before! Could someone explain it please?

I observed this fly in the back garden sitting in a bush. It stayed there for quite a while simply blowing bubbles. One after the other.

I've never seen this behaviour before! Could someone explain it please?