Plover vs. Cockatoos

[pardalote <>]

Hi All

On Monday morning, about 8:00 am, at the pond/roundabout near the CIT building in civic, I looked out of the bus window and saw what I believed to be a masked-lapwing plover and some SC cockatoos.  They were flying high above the streets and it appeared the poor plover was in hot pursuit of a mob of the cockatoos.  I have absolutely no idea why the cockies were chasing the plover, but it was somewhat amusing to see contrasting birds involved in what may have been a bitter dispute.  As the bus trundled down the road, I observed another plover standing quite happily standing on the roof of a small brown building.

Has anyone else witnessed strange bird interactions like this before?

Matt.