| Birds | Prairie Warbler Setophaga discolor    Copyright David Seibel, 2012 (#5698) | Send Comment Camera: Canon EOS-1D Mark IV Exposure: 1/800 sec, f/7.1, ISO 800 Lens: Canon 500mm f/4L IS + 1.4x II TC Date: May 24, 2012 Location: Roaring River State Park, Missouri, USA