Here’s one for all the crossword aficionados.
Poking around on the Moolort Plains over the weekend I came across a ‘siege of herons’ – fourteen White-necked Herons Ardea pacifica, resting beside a small farm dam.
Leaving the car spooked them of course, so the best I could manage was ten in one frame. It’s not unusual to see this species in small winter flocks, but I can’t recall a siege of this magnitude for a while!
Postscript: Check out this neat link to the US Geological Survey on animal congregations.