| Birds | Great-tailed Grackle Quiscalus mexicanus    Copyright David Seibel, 2008 (#1974) | Send Comment Camera: Canon EOS-1D Mark II N Exposure: 1/640 sec, f/5.6, ISO 400 Lens: Canon 500mm f/4L IS + 1.4x II TC Date: March 17, 2008 Location: Bentsen-Rio Grande Valley State Park, Texas, USA