| Birds | Redhead Aythya americana    Copyright David Seibel, 2010 (#4126) | Send Comment Camera: Canon EOS 7D Exposure: 1/1250 sec, f/8.0, ISO 500 Lens: Canon 500mm f/4L IS + 1.4x II TC Date: March 21, 2010 Location: Cheyenne Bottoms, Kansas, USA