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

Age-Specific Changes In The Major Body Components And Caloric Values Of Herring Gull Chicks, Erica H. Dunn, I. Lehr Brisbin Jr. 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

Commentary, The Condor Nov 1980

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

Diets Of Pygoscelid Penguins At King George Island, Antarctica, Nicholas J. Volkman, Piotr Presler, Wayne Trivelpiece Nov 1980

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

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

Head-Down Or "Preening Invitation" Displays Involving Juvenile Brown-Headed Cowbirds, Peter E. Lowther, Stephen I. Rothstein Nov 1980

The Bulletin Board, The Condor Nov 1980

Index To Volume 82, The Condor Nov 1980

A Nesting Hummingbird Feeding Solely On Arthropods, Robert D. Montgomerie, Catherine A. Redsell Nov 1980

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

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

Front Matter (Pdf), The Condor Aug 1980

Back Matter (Pdf), The Condor Aug 1980

Variation In Peent Calls Of American Woodcock, Donald W. Thomas, T. G. Dilworth Aug 1980

Is The Incubation Patch Required For The Construction Of A Normal Nest?, Michael D. Kern, Annabella Bushra Aug 1980

Calories, Water, Lipid, And Yolk In Avian Eggs, Cynthia Carey, Hermann Rahn, Phyllis Parisi Aug 1980

Enormous Concentration Of Martins (Progne Spp.) In Iquitos, Peru, David C. Oren Aug 1980

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

Recent Publications, The Condor Aug 1980

The Behavioral Ecology Of Breeding American Coots In Relation To Age, Mark R. Ryan, James J. Dinsmore Aug 1980