| Volume 23, No. 1 | March 1991 |
| Paul B. Kannowski, Editor | |
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| Douglas H. Johnson, Book Review Editor | |
| TABLE OF CONTENTS | ||
| Agricultural Land Use and Mourning Doves in Eastern Colorado: Implications For Nesting and Production in The Great Plains | ||
| T. E. Olson, C. E. Braun, and R. A. Ryder | 1 | |
| Distribution of Sandhill Cranes in The North
Platte
River Valley 1980 and 1989 |
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| M. J. Folk and T. C. Tacha | 11 | |
| Nocturnal Behavior of Sandhill Cranes Roosting in The Platte River, Nebraska | ||
| B. S. Norling, S. H. Anderson, and W. A. Hubert | 17 | |
| Lead Poisoning of A Marbled Godwit | ||
| L. N. Locke, M. R. Smith, R. M. Windingstad, and S. J. Martin | 21 | |
| Geographic Affinity of Bird Species Associated with Rocky
Mountain Juniper Woodlands and Adjacent Grasslands in Southwestern
South Dakota |
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| C. H. Sieg |
25 |
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| Implanting Radio
Transmitters in Plains Pocket Gophers |
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| K. C. Zinnel and J. R. Tester |
35 |
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| Courtship, Eggs, and
Development of The Plains Topminnow in Nebraska (Actinopterygii:
Fundulidae) |
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| S. A. Kaufmann and J. D. Lynch |
41 |
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| BOOK REVIEWS | ||
| Nature Television in A Book N. L. Ford |
46 |
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| A Natural History Imperative B. Heidel |
47 | |
| NOTES | |
| Two Incubating Mallards Move Eggs to Drier Nest Sites J. P. Fleskes |
49 |
| EDITORIAL POLICY EDITOR |
51 |
| SUGGESTIONS FOR CONTRIBUTORS EDITOR |
52 |