While out at White Rock Lake in Dallas a few months ago, I saw these two great birds (a Great Blue Heron and a Great Egret) having a staring contest. I think the Snowy Egret was the referee.
I setup the shot and catptured it with a Canon 1D Mark III with my Canon 400mm 5.6 L and Canon 1.4x extender sitting on my Induro CT314 tripod.
EXIF: 1/400 sec, f/8.0, ISO 1600, 560mm (400mm + 1.4 extender)