Swarm

Swarm

Observation - Swarm. Description: I am putting this swarm of Green-bottled flies on in response to comments on a more recent observation. I would love to know what had attracted them and a few of other species to this to this little square yard of ground. I could not smell anything obvio

I am putting this swarm of Green-bottled flies on in response to comments on a more recent observation.
I would love to know what had attracted them and a few of other species to this to this little square yard of ground. I could not smell anything obvious that would be a give-away.