. Bulletin - Biological Survey. Zoology, Economic. Bui. 39, Biological Survey, U. S. Dept. of Agriculture. Plate Work of Flicker and Sapsuckers. [1, Holes made by flicker in ranch buildings near Haywards, Cal. 2, Type of sapsuckerwork on white birch; 3, on apple; 4, on willow (Sulix conlata), holes enlarged vertically by continued excavation at upper end; 5, on willow, almost complete barking; 6, on pitch pine, tree killed.]. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illust
. Bulletin - Biological Survey. Zoology, Economic. Bui. 39, Biological Survey, U. S. Dept. of Agriculture. Plate Work of Flicker and Sapsuckers. [1, Holes made by flicker in ranch buildings near Haywards, Cal. 2, Type of sapsuckerwork on white birch; 3, on apple; 4, on willow (Sulix conlata), holes enlarged vertically by continued excavation at upper end; 5, on willow, almost complete barking; 6, on pitch pine, tree killed.]. 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. Bureau of Biological Survey. Washington : Govt. print. off.
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License: Licensed
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherwashingtongovtprin
