| Birds | Prairie Warbler Setophaga discolor    Copyright David Seibel, 2012 (#5684) | Send Comment Camera: Canon EOS-1D Mark IV Exposure: 1/3200 sec, f/7.1, ISO 1000 Lens: Canon 500mm f/4L IS + 1.4x II TC Date: May 23, 2012 Location: Roaring River State Park, Missouri, USA