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Fifty common birds of farm and orchard
- United States Bureau of Biological Survey.
- Farmers' bulletin (United States. Dept. of Agriculture) ; no. 513 1913
- Birds, beneficial organisms, wild birds, predator-prey relationships, insect pests, pest management, biological control agents, animal behavior, wildlife food habits, feeding behavior, songbirds, and biological control
- 31 p. : col. ill. ; 23 cm.
- U.S. Dept. of Agriculture
- Organic Roots Collection