| Birds | Chestnut-sided Warbler Setophaga pensylvanica    Copyright David Seibel, 2011 (#5207) | Send Comment Camera: Canon EOS-1D Mark IV Exposure: 1/300 sec, f/5.6, ISO 2000 Lens: Canon 500mm f/4L IS + 1.4x II TC Date: November 27, 2011 Location: La Selva Biological Station, Heredia, Costa Rica