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Unusual Egg Deposition In Mourning Doves, Harman P. Weeks Jun 1980

Territorial Behavior In A Pair Of White-Throated Sparrows, Frederick E. Wasserman Mar 1980

Ornithological Literature, Wilson Bulletin Mar 1980

Breeding Biology Of Eastern Phoebes In Northern Wisconsin, Craig A. Faanes Mar 1980

Sandhill Cranes Prey On Canada Goose Eggs, Ronald H. Hoffman Mar 1980

Notes On The Birds Of Honduras, Fred C. Sibley, George F. Barrowclough, Charles G. Sibley Mar 1980

Corn Cob Manipulation In Northern Harriers, Keith L. Bildstein Mar 1980

The Selection And Use Of Fruit By Birds In An Eastern Forest, John W. Baird Mar 1980

Notes On Parasitism By Bronzed Cowbirds In El Salvador, Walter A. Thurber, Amanda Villeda Mar 1980

The Determination Of Runt Eggs In Birds, Walter D. Koenig Mar 1980

First Breeding Record Of The Double-Crested Cormorant In Virginia, Charles R. Blem, William H. Gutzke, Claire Filemyr Mar 1980

Ornithological News, Wilson Bulletin Mar 1980

Front Matter (Pdf), Wilson Bulletin Mar 1980

A New Species Of Metaltail Hummingbird From Northern Peru, Gary R. Graves Mar 1980

Observations Of A White-Winged Crossbill Invasion Of Southeastern Manitoba, Spencer G. Sealy, Donald A. Sexton, K. Michael Collins Mar 1980

Experiments In Feeding Behavior Of The Anna Hummingbird, Thomas G. Wheeler Mar 1980

Food Habits Of White Pelicans During 1976 And 1977 At Chase Lake National Wildlife Refuge, North Dakota, Gary R. Lingle, Norman F. Sloan Mar 1980

A Nest Of The Ringed Gnatpipit (Corythopis Torquata), Yoshika Oniki, Edwin O. Willis Mar 1980

Spatial And Temporal Distribution Of Rails In Colorado, Herman J. Griese, Ronald A. Ryder, Clait E. Braun Mar 1980

Winter Hunting Behavior Of A Snowy Owl In Michigan, Michael L. Chamberlin Mar 1980

Variation In Promiscuity Among Red-Winged Blackbirds, Thomas A. Roberts, James J. Kennelly Mar 1980

Warblers Feeding From Ice, Martin K. Mcnicholl, J. Paul Goossen Mar 1980

Report Of The Conservation Committee--1978, Wilson Bulletin Mar 1980

Back Matter (Pdf), Wilson Bulletin Mar 1980

Response By Male Fox Sparrows To Broadcast Of Particular Conspecific Songs, Dennis J. Martin Mar 1980

Bi-Parental Care In Killdeer: An Adaptive Hypothesis, Sarah Lenington Mar 1980

The Thermoregulatory Significance Of The Winter Roost-Sites Selected By Robins In Eastern Washington, Glenn E. Walsberg, James R. King Mar 1980

Feeding Ecology Of The Black-Whiskered Vireo And Associated Gleaning Birds In Jamaica, Alexander Cruz Mar 1980

Flocking As A Possible Predator Defense In Dark-Eyed Juncos, Peter Goldman Mar 1980

Adult Brown Pelican Robs Great Blue Heron Of Fish, Keith L. Bildstein Mar 1980