. Brigham Young University science bulletin. Biology -- Periodicals. A - Fig. 34. Young peregrines at approximately 4 weeks of age (eyrie site 7, alt. site C). Photo by R. D. Porter and R. J. Erwin, Fig. Young peregrines about 6 weeks of age, nearly old enough to fledge (eyrie site 7, alt. site C). Photo bv R. D. Porter, 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 science bulletin. Biology -- Periodicals. A - Fig. 34. Young peregrines at approximately 4 weeks of age (eyrie site 7, alt. site C). Photo by R. D. Porter and R. J. Erwin, Fig. Young peregrines about 6 weeks of age, nearly old enough to fledge (eyrie site 7, alt. site C). Photo bv R. D. Porter, 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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