Black-crowned Night Heron along the Mahaicony River, Guyana. Taken: 22 February, 2015Camera: Canon EOS 7D Mark IIFocal length: 500mmAperture: ƒ/4Shutter speed: 1/3200sISO: 3200Flash fired: no Black-crowned Night-Heron (Nycticorax nycticorax) in the Botanical Gardens, Georgetown. Taken: 15 November, 2014Camera: Canon EOS 7D Mark IIFocal length: 500mmAperture: ƒ/4Shutter speed: 1/1250sISO: 400Flash fired: no Black-crowned Night Heron (Nycticorax nycticorax) hunting at the mudflats near the Ogle seawall. Taken: 29 May, 2014Camera: Canon EOS 6DFocal length: 700mmAperture: ƒ/8Shutter speed: 1/2000sISO: 640Flash fired: yes