. Bulletin - United States National Museum. Science. Bethel, Alaska, June 13, 1946 L. H. Walkinshaw Common Redpoll at Nest. Virginia Lakes, Mono County, Calif., June 21, 1940 Nest of Pine siskin J. S. Rowley. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. o

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. Bulletin - United States National Museum. Science. Bethel, Alaska, June 13, 1946 L. H. Walkinshaw Common Redpoll at Nest. Virginia Lakes, Mono County, Calif., June 21, 1940 Nest of Pine siskin J. S. Rowley. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.

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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience