I have a 24 ft above the ground pool in my yard. The cover is still on, and each year, around this time, we are visited by a pair of Mallards. Usually they only stay for an hour or so. This year it has been every morning and evening for the past several days. Here is a shot that I took this evening. In post procesing, I set the WB to daylight. This was taken after 7:00 PM EST. The light was fading fast. Comments welcome as always.
EXIF
Make : NIKON CORPORATION
Model : NIKON D100
DateTime : 2005:05:22 19:24:40
ExposureTime : 1/60Sec
FNumber : F2.8
ExposureProgram : Program Normal
MaxApertureValue : F2.8
Flash : Not fired
FocalLength : 300.00(mm)
ExposureMode : Auto
WhiteBalance : Auto
FocalLength(35mm) : 450(mm)
ISO Setting : 200
WhiteBalance : AUTO
FocusMode : AF-S
Lens information : 300.0-300.0(mm) F2.8-F2.8
FocusArea : DynamicAF (right)
ColorSpace : MODE2

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EXIF
Make : NIKON CORPORATION
Model : NIKON D100
DateTime : 2005:05:22 19:24:40
ExposureTime : 1/60Sec
FNumber : F2.8
ExposureProgram : Program Normal
MaxApertureValue : F2.8
Flash : Not fired
FocalLength : 300.00(mm)
ExposureMode : Auto
WhiteBalance : Auto
FocalLength(35mm) : 450(mm)
ISO Setting : 200
WhiteBalance : AUTO
FocusMode : AF-S
Lens information : 300.0-300.0(mm) F2.8-F2.8
FocusArea : DynamicAF (right)
ColorSpace : MODE2