| Birds | Yellow-thighed Finch Pselliophorus tibialis    Copyright David Seibel, 2011 (#5372) | Send Comment Camera: Canon EOS-1D Mark IV Exposure: 1/100 sec, f/5.6, ISO 1600 Lens: Canon 500mm f/4L IS + 1.4x II TC Date: December 1, 2011 Location: Alajuela, Costa Rica