. Elementary principles of agriculture; a text book for the common schools . 10 RedHeadod Woodpecker Beneficial Animals 11 Red IVingfed Blackbird. 12 American Crotr Fru its Grain Injurious An imals ^^M mid Seed Fig. 119. Diagram illustrating the proportions of the food of various beneficial and destructive birds.

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Keywords: ., bookauth, bookcentury1900, bookdecade1900, booksubjectagriculture