| Birds | Least Grebe Tachybaptus dominicus    Copyright David Seibel, 2011 (#12418) | Send Comment Camera: Canon EOS-1D Mark IV Exposure: 1/640 sec, f/11.0, ISO 2000 Lens: Canon 500mm f/4L IS + 1.4x II TC Date: March 25, 2011 Location: Estero Llano Grande State Park, Texas, USA