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Probable Investigator-Induced Egg Drop By A Horned Lark, P. B. Wackenhut, Kenneth A. Strait, Robert C. Whitmore Sep 1983

The Taxonomy Of Microcerculus Wrens (Troglodytidae) In Central America, F. Gary Stiles Jun 1983

Ornithological News, Wilson Bulletin Jun 1983

Incomplete Songs And Associated Behavior Of Sage Sparrows, Terrell Rich Jun 1983

Foraging Dives By Post-Breeding Northern Pintails, Michael R. Miller Jun 1983

Factors Affecting Feeding And Brooding Of Brown Thrasher Nestlings, Patricia A. Heagy, Louis B. Best Jun 1983

Adaptive Response Of Nesting Clapper Rails To Unusually High Water, Jerome A. Jackson Jun 1983

Black-Capped Chickadee Performs Hiss-Display While In Wire-Mesh Trap, Keith L. Dixon Jun 1983

Back Matter (Pdf), Wilson Bulletin Jun 1983

Front Matter (Pdf), Wilson Bulletin Jun 1983

The Relationships And Evolution Of The Southwest Pacific Warbler Genera Vitia And Psamathia (Sylviinae), Ronald I. Orenstein, H. Douglas Pratt Jun 1983

Factors Influencing The Timing, Distance, And Path Of Migrations Of Canada Geese, Michael L. Wege, Dennis G. Raveling Jun 1983

Food Supply And The Occurrence Of Brood Reduction In Swainson's Hawk, Marc J. Bechard Jun 1983

Productivity Of Ospreys In The Gulf Of California, Debra S. Judge Jun 1983

Ornithological Literature, Wilson Bulletin Jun 1983

Incubation Period Of Ring-Billed Gulls And The Egg Immersion Technique, Erica Nol, Hans Blokpoel Jun 1983

Communal Harvesting Of A Transient Food Resource In The Mexican Jay, Jerram L. Brown Jun 1983

Effect Of Unlimited Food Availability On The Breeding Biology Of Wild Eurasian Tree Sparrows In West Malaysia, Marina Wong Jun 1983

Nesting Ecology Of The Loggerhead Shrike In Central Missouri, Alan Kridelbaugh Jun 1983

Chick Movements In Common Poorwills, Jon E. Swenson, Paul Hendricks Jun 1983

Nestling Growth And Development And The Breeding Ecology Of The Beechey Jay, Scott R. Winterstein, Ralph J. Raitt Jun 1983

Grallaricula Ochraceifrons, A New Species Of Antpitta From Northern Peru, Gary R. Graves, John P. O'Neill, Theodore A. Parker Iii Mar 1983

Effects Of Investigator Activity On Ring-Billed Gull Behavior And Reproductive Performance, Peter M. Fetterolf Mar 1983

Ornithological Literature, Wilson Bulletin Mar 1983

Responses Of Black-Headed Grosbeaks To Songs Of Conspecifics, Gary Ritchison Mar 1983

Annual Adult Survival Rates For Brown-Headed Cowbirds Wintering In Southeast Texas, Keith A. Arnold, Dan M. Johnson Mar 1983

Flocking Pattern Of Foraging American Crows In Oklahoma, Fritz L. Knopf, Barbara A. Knopf Mar 1983

Northern Mockingbird Kills Cedar Waxwing, L. D. Hedrick, A. D. Woody Mar 1983

American Coot Apparently Suffocates While Attempting To Swallow Lizard, Gary F. Mccurdy Mar 1983

Head-Scratching Method Of Galapagos Finches Unaffected By Variation In Cranial Morphology, Edward H. Burtt Jr. Mar 1983