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Mixed Flocks, Accipiters, And Antipredator Behavior, Philip Gaddis Aug 1980

The Bulletin Board, The Condor Aug 1980

A Variable Circular-Plot Method For Estimating Bird Numbers, R. T. Reynolds, J. M. Scott, R. A. Nussbaum Aug 1980

Some Unusual Records For The Peregrine And Pallid Falcons In South America, David H. Ellis, Richard L. Glinski Aug 1980

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

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

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

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

Demand Behavior: A New Interpretation Of Courtship Feeding, Susan M. Smith 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

Olfactory Guidance In Foraging By Procellariiforms, Larry V. Hutchison, Bernice W. Wenzel Aug 1980

Geographical Variation In Song And Song Dialects Of Montane White-Crowned Sparrows, Luis F. Baptista, James R. King Aug 1980

Front Matter (Pdf), The Condor May 1980

Back Matter (Pdf), The Condor May 1980

Birds Feeding On Herring Eggs At The Yaquina Estuary, Oregon, Range D. Bayer May 1980

Recent Publications, The Condor May 1980

Raptor Hematocrit Values, Samuel R. Hunter, Leon R. Powers May 1980

Breeding Ecology Of The Little Blue Heron On The West Coast Of Florida, James A. Rodgers Jr. May 1980

News And Notes, The Condor May 1980

Destruction Of Nests By The Short-Billed Marsh Wren, Jaroslav Picman, Anna K. Picman May 1980

Commentary, The Condor May 1980

Factors Affecting Nesting Success In Riparian Bird Communities, Louis B. Best, Dean F. Stauffer May 1980

Winter Breeding In Emperor Penguins: A Consequence Of The Summer Heat?, Berry Pinshow, W. R. Welch May 1980

Food Habits Of The Bald Eagle In North-Central Florida, Linda C. Mcewan, David H. Hirth May 1980

Feeding Ecology Of Hummingbirds In The Highlands Of The Chisos Mountains, Texas, Joseph F. Kuban, Robert L. Neill May 1980

A Numerical Approach To The Analysis Of Solitary Vireo Songs, Steven Martindale May 1980

Diets Of Young Lapland Longspurs In Arctic And Subarctic Alaska, T. R. Seastedt May 1980

Hurricane Fifi And The 1974 Autumn Migration In El Salvador, Walter A. Thurber May 1980

Removal Of Primary Remiges And Its Effect On The Flying Ability Of Glaucous-Winged Gulls, Nicolaas A. Verbeek, Joan L. Morgan May 1980