Back to Index Black Tern Chlidonias niger    Copyright David Seibel, 2006 (#1046) | Send Comment Camera: Canon EOS 20D Exposure: 1/1000 sec, f/8.0, ISO 400 Lens: Canon 500mm f/4L IS + 1.4x II TC Date: June 28, 2006 Location: J. Clark Salyer National Wildlife Refuge, North Dakota, USA