| Birds | Great Gray Owl Strix nebulosa    Copyright David Seibel, 2013 (#6562) | Send Comment Camera: Canon EOS 1D Mark IV Exposure: 1/400 sec, 5.6, ISO 4000 Lens: Canon 500mm f/4L IS + 1.4x II TC Date: March 9, 2013 Location: Duluth, Minnesota, USA