Southern Rough-winged Swallow perched on branch along the Rupununi River near Karanambu Lodge. Taken: 31 October, 2015Camera: Canon EOS 7D Mark IIFocal length: 500mmAperture: ƒ/5Shutter speed: 1/1600sISO: 400Flash fired: no Southern Rough-winged Swallow perched on branch along the Rupununi River near Karanambu Lodge. Taken: 31 October, 2015Camera: Canon EOS 7D Mark IIFocal length: 500mmAperture: ƒ/5Shutter speed: 1/1600sISO: 400Flash fired: no