. Birds of the Chukchi Peninsula and Wrangel Island = (Ptitsy Chukotskogo poluostrova i ostrova Vrangelya). Birds; Birds. *i Fig. 21. Bluethroat Cyanosylvia svecica (L.) on its nest. Amguema by Kilometer 91. July 10, 1956. Fig. 22. Nest of Bluethroat Cyanosylvia svecica (L.) with chicks. Amguema by Kilometer 91. July 10, 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 Portenko, L. A. (Leonid Aleksandrovich), 1896-197

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. Birds of the Chukchi Peninsula and Wrangel Island = (Ptitsy Chukotskogo poluostrova i ostrova Vrangelya). Birds; Birds. *i Fig. 21. Bluethroat Cyanosylvia svecica (L.) on its nest. Amguema by Kilometer 91. July 10, 1956. Fig. 22. Nest of Bluethroat Cyanosylvia svecica (L.) with chicks. Amguema by Kilometer 91. July 10, 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 Portenko, L. A. (Leonid Aleksandrovich), 1896-1972. New Delhi : Published for the Smithsonian Institution and the National Science Foundation, Washington, D. C. , by Amerind Pub. Co.

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Keywords: ., bo, bookcentury1900, bookcollectionbiodiversity, booksubjectbirds