. The birds of El Paso County, Colorado . Birds. P'9- 5- Young Western Horned Owl. Delta County, Colo. E. R. W., Fig. 6. Young Aiken's Screech Owls. Colorado Springs. E. R. W., 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 Aiken, Charles Edward Howard, 1850-1936; Colorado College. Science series. [Colorado Springs : Published by the authority of the Board of Trustees of Colorado College

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, bookyear1914