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Migration In A Local Population Of Spruce Grouse, Patrick W. Hersog, Daniel M. Keppie Nov 1980

First Record Of The Common Cuckoo From Mainland North America, Robert Gill Jr., Colleen M. Handel Nov 1980

Foods Of Breeding Tricolored Blackbirds In Agricultural Areas Of Merced County, California, Joseph P. Skorupa, Roger L. Hothem, Richard W. Dehaven Nov 1980

Breeding Biology Of Curve-Billed Thrashers And Long-Billed Thrashers In Southern Texas, David H. Fischer Nov 1980

Diversity And Abundance Of Spring Migratory Birds Using Habitat Islands On The Great Plains, Thomas E. Martin Nov 1980

Rictal Bristle Function In Willow Flycatcher, Michael R. Conover, Don E. Miller Nov 1980

The Birds Of Finca Merenberg, Huila Department, Colombia, Robert S. Ridgely, Steven J. Gaulin Nov 1980

Index To Volume 82, The Condor Nov 1980

Sex-Specific Differences In Winter Distribution Patterns Of Canvasbacks, James D. Nichols, G. Michael Haramis Nov 1980

Social Interactions In The Santa Cruz Island Scrub Jay, Jonathan L. Atwood Nov 1980

Changes In The Proportion Of Bridled Murres In Northern Labrador, T. R. Birkhead, A. R. Lock Nov 1980

Observations Of The Behavior Of The Zigzag Heron, William E. Davis Jr., Paul K. Donahue, Eleanor G. Perkins Nov 1980

Ontogeny Of Oxygen Consumption By Embryos Of Two Species Of Swallows (Hirundinidae), Geoffrey F. Birchard, Delbert L. Kilgore Jr. Nov 1980

Commentary, The Condor Nov 1980

Limber Pine Seed Harvest By Clark's Nutcracker In The Sierra Nevada: Timing And Foraging Behavior, Diana F. Tomback, Kathryn A. Kramer Nov 1980

Crested Auklet Found In California, Fred O. Weyman Nov 1980

Intra-Island Variation In The 'Elepaio On The Island Of Hawai'i, H. Douglas Pratt Nov 1980

Winter Wren Singing Behavior: A Pinnacle Of Song Complexity, Donald E. Kroodsma Nov 1980

Frequency And Distribution Of Polygyny In Great Lakes Herring Gulls In 1978, Gary W. Shugart Nov 1980

Front Matter (Pdf), The Condor Aug 1980

Back Matter (Pdf), The Condor Aug 1980

Cowbird Parasitism Of Marsh-Nesting Red-Winged Blackbirds, Charles F. Facemire Aug 1980

Territoriality And Flocking By Buff-Breasted Sandpipers: Variations In Non-Breeding Dispersion, J. P. Myers Aug 1980

Changes With Time In The Songs Of A Population Of Chaffinches, S. A. Ince, F. J. B. Slater, C. Weissmann Aug 1980

Seasonal Aspects Of The Predatory Behavior Of Loggerhead Shrikes, Michael L. Morrison Aug 1980

Identification And Status Of Wood Pewees (Contopus) From The Great Plains: What Are Sibling Species?, James D. Rising, Frederick W. Schueler Aug 1980

Apparent Replacement Clutch Laid By Wild California Condor, Ed N. Harrison, Lloyd F. Kiff Aug 1980

News And Notes, The Condor Aug 1980

Colony And Nest Site Selection In Laughing Gulls In Response To Tidal Flooding, Joanna Burger, Joseph Shisler Aug 1980

Stereotypy Of Some Parameters Of Red-Winged Blackbird Song, Douglas G. Smith, Fiona A. Reid, Candace B. Breen Aug 1980