water birds Grebe Courting

Exposure Date: 2013:04:06 16:48:20;
Make: Canon;
Model: Canon EOS-1D Mark IV;
ExposureTime: 1/1000 s;
FNumber: f/8;
ISOSpeedRatings: 640;
ExposureProgram: Manual;
ExposureBiasValue: 0/1;
MeteringMode: Spot;
Flash: Flash did not fire;
FocalLength: 420 mm;
Software: Adobe Photoshop CS4 Windows;