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Subjects
- Animals -- Michigan.1
- Birds -- Michigan.1
- Conservation of natural resources -- Michigan.1
- Environmental legislation -- United States.[remove]1
- Environmental protection -- Michigan.1
- Fisheries -- Michigan.1
- Fishing -- Michigan.1
- Hunting -- Michigan.1
- Landscape photographs.1
- Natural parks and reserves -- Michigan.1
- Northern Woods Call.1
- Pollution -- Michigan.1
- State parks and reserves -- Michigan.1