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13 HYDRO ENERGY
4
ANIMALS
4
BIRDS
4
DAMS
4
ENVIRONMENTAL EFFECTS
FEDERAL REGION VIII
4
FOWL
GEESE
4
HABITAT
4
MONTANA
4
NORTH AMERICA
SURFACE WATERS
4
USA
4
VERTEBRATES
4
HYDROELECTRIC POWER PLANTS
3
POWER PLANTS
3
REPRODUCTION
3
WATER RESERVOIRS
3
54 ENVIRONMENTAL SCIENCES
2
LAKES
2
NESTS
2
PRODUCTIVITY
2
WILD ANIMALS
2
COLUMBIA RIVER BASIN
1
MITIGATION
1
MORTALITY
1
POPULATION DYNAMICS
1
RECOMMENDATIONS
1
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