. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. U 5 6 7 8. 9 10 Fig. 2: Different types of feathers used as characters for the analysis of age variation. 1 to 3: small marginal coverts of the wing. 4 to 8: contour feathers of the back. 9 and 10: 2nd 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 Zoologisches Forschungsinstitut und M
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. U 5 6 7 8. 9 10 Fig. 2: Different types of feathers used as characters for the analysis of age variation. 1 to 3: small marginal coverts of the wing. 4 to 8: contour feathers of the back. 9 and 10: 2nd 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 Zoologisches Forschungsinstitut und Museum Alexander Koenig. Bonn : Das Forschungsinstitut
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Keywords: ., bookcentury1900, bookcoll, booksubjectbiology, booksubjectzoology
