. The ornithology of Illinois. Part I. Descriptive catalogue. Birds. XX. Nycticorax nycticorax Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ridgway, Robert, 1850-1929; Illinois. Natural History Survey Division. Springfield, Ill. , H. W. Rokker, Printer

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Keywords: ., bookauthorridg, bookcentury1800, bookdecade1880, booksubjectbirds