| Birds | Tree Swallow Tachycineta bicolor    Copyright David Seibel, 2013 (#7679) | Send Comment Camera: Canon EOS-1D Mark IV Exposure: 1/2500 sec, f/10.0, ISO 1600 Lens: Canon 500mm f/4L IS + 1.4x II TC Date: May 12, 2013 Location: Baker Wetlands, Kansas, USA