. Brigham Young University science bulletin. Biology -- Periodicals. l^^^im^^i^^!^i^^i,simi^^^i^^m!i^:t. Frontispiece. Thirty-four-day-okl Ferruginous Hawks, Thorpe Hills, Utah County, Utah, June 21, 1968. The brood consists of 3 dark-phase individuals and one light ("normal") phase (see p. 34). Photo by J. B. 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 Brigham Young University. Provo, Utah : Brigham

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. Brigham Young University science bulletin. Biology -- Periodicals. l^^^im^^i^^!^i^^i,simi^^^i^^m!i^:t. Frontispiece. Thirty-four-day-okl Ferruginous Hawks, Thorpe Hills, Utah County, Utah, June 21, 1968. The brood consists of 3 dark-phase individuals and one light ("normal") phase (see p. 34). Photo by J. B. 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 Brigham Young University. Provo, Utah : Brigham Young University

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