The birds of Norfolk & Lord Howe Islands and the Australasian South Polar quadrant :London :H.F. & G. Witherby,1928.biodiversitylibrary.org/page/58795307
Little Blue Heron wading at the edge of a canal in Tortuguero National Park, Costa Rica - Feb 2005.This photo was taken during the day but the canopy cover was dense, so a flash was used to provide lighting.