1. Bulletin.

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2. Wildfowl.

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3. Winged messengers : the decline of birds

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4. Illegal waterfowl hunting in the Mississippi flyway and recommendations for alleviation

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5. Habitat area requirements of breeding forest birds of the Middle Atlantic States

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6. Determinants of breeding distributions of ducks

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8. Social organization of Sandhill cranes from midcontinental North America

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9. Ecology of bald eagles in the greater Yellowstone ecosystem

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10. Distribution and biology of the spotted owl in Oregon

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11. Use of snags by cavity-nesting birds in the Sierra Nevada

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12. Avian habitat suitability along a transmission-line corridor in an oak-hickory forest region

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13. Breeding birds of Long Point, Lake Erie

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15. Development of behavior in the Golden eagle

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16. Migration of birds

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17. The first ten years of the co-operative Breeding Bird Survey in Canada

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18. The history and breeding biology of the Canada geese of Marshy Point, Manitoba

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19. Food habits of the stubble quail, Coturnix pectoralis, in south-eastern Australia

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20. Birds in boreal Canada : communities, densities and adaptations

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