During the late afternoon of August 21, 2012, we left Nxamaseri Island Lodge (Maun, Botswana) by boat and headed to the lagoon and solid ground where we boarded a safari vehicle to look for additional species. Brad photographed a Water Thick-Knee, Burhinus vermiculatus, standing near the lagoon. Nocturnal and crepuscular, this species spends the day resting and was just becoming active near sunset. Its large head and eyes, and long legs along with its distinct black edged gray wing-bar make this species fairly easy to ID. The term "thick-knee" is a misnomer because the joint referred to is not the knee but the tibio-tarsal joint, a bird's equivalent of an ankle joint. Temperatures were in the upper 80's with clear blue skies.


WaterThick-Knee.jpg
Exif
Make NIKON CORPORATION
Model NIKON D7000
Orientation top, left side
X Resolution 1/300 inches
Y Resolution 1/300 inches
Resolution Unit Inches
Software ViewNX 2.0 W
Date/Time 2013:04:21 13:11:09
Artist
YCbCr Positioning Center of pixel array
Copyright
Exposure Time 1/125 sec
F-Number F6.3
Exposure Program Program normal
ISO Speed Ratings 160
Exif Version 2.30
Date/Time Original 2012:08:21 17:54:03
Date/Time Digitized 2012:08:21 17:54:03
Components Configuration YCbCr
Exposure Bias Value 0
Max Aperture Value F6.3
Metering Mode Spot
Light Source Unknown
Flash Unknown (16)
Focal Length 500.0 mm
User Comment ASCII
Sub-Sec Time 20
Sub-Sec Time Original 20
Sub-Sec Time Digitized 20
FlashPix Version 1.00
Color Space Undefined
Exif Image Width 1293 pixels
Exif Image Height 970 pixels
Sensing Method One-chip color area sensor
File Source Digital Still Camera (DSC)
Scene Type Directly photographed image
CFA Pattern
Compression JPEG compression
Thumbnail Offset 12456 bytes
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Thumbnail Data [3972 bytes of thumbnail data]
GPS
GPS Version ID 2 2 2 2
generated by EXIF-O-Matic on 2013.4.21