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Back Matter (Pdf), Wilson Bulletin Sep 1989

A New Allopatric Taxon In The Hapalopsittaca Amazonina (Psittacidae) Superspecies From Colombia, Gary R. Graves, Daniel Uribe Restrepo Sep 1989

Ornithological Literature, Wilson Bulletin Sep 1989

Biology Of The Austral Pygmy-Owl, Jaime E. Jimenez, Fabian M. Jaksic Sep 1989

New And Noteworthy Records Of Birds From The Eastern Yucatan Peninsula, Arturo Lopez Ornat, James F. Lynch, Barbara Mackinnon Montes Sep 1989

Phylogenetic Relationships And Incipient Flightlessness Of The Extinct Auckland Islands Merganser, Bradley C. Livezey Sep 1989

Release Of Gaping In Hummingbirds (Trochilidae), Karl L. Schuchmann Sep 1989

Decline Of The Long-Eared Owl In New Jersey, Thomas Bosakowski, Richard Kane, Dwight G. Smith Sep 1989

Bald Eagles Killing American Coots And Stealing Coot Carcasses From Greater Black-Backed Gulls, Stefan Sobkowiak, Rodger D. Titman Sep 1989

Relative Contribution Of The Sexes To Chick Feeding In Roseate And Common Terns, Richard H. Wagner, Carl Safina Sep 1989

Prolonged Parental Care And Foraging Of Greater Snow Goose Jnveniles, Yves Turcotte, Jean Bedard Sep 1989

Attempted Polygyny By A Merlin, Navjot S. Sodhi Sep 1989

Common Moorhen Parasitizes A Boat-Tailed Grackle Nest, W. Post, C. Seals Sep 1989

Population Trends In Some Florida Bay Wading Birds, George V. N. Powell, Robin D. Bjork, John C. Ogden, Richard T. Paul, A. Harriett Powell, William B. Robertson Jr. Sep 1989

The Impact Of Male Parental Care On Female Eastern Kingbird Reproductive Success, Patricia A. Hayes, Raleigh J. Robertson Sep 1989

The Evolution Of Reversed Sexual Dimorphism In Owls: Corrections And Further Analyses, Helmut C. Mueller Sep 1989

Incidental Egg Dumping By The House Wren In A Yellow Warbler Nest, Spencer G. Sealy Sep 1989

Female Hooded Warbler Plumage Does Not Become More Male-Like With Age, Eugene S. Morton Sep 1989

Posthatch Brood Amalgamation By Mallards, John D. Boos, Thomas D. Nudds, Kjell Sjoberg Sep 1989

Effects Of Radio Transmitters On The Foraging Behavior Of Barn Swallows, R. Mark Brigham Sep 1989

A Possible Foraging Relationship Between Black-Billed Magpies And American Kestrels, Ronald J. Sarno Sep 1989

Loggerhead Kingbirds Feeding On Sesarma Crabs, Albert E. Burchsted, Grace Chambers Sep 1989

Front Matter (Pdf), Wilson Bulletin Sep 1989

Nesting Ecology Of Mourning Doves In A Cold Desert Ecosystem, Frank P. Howe, Lester D. Flake Sep 1989

Nest Sites Of The Micronesian Kingfisher On Guam, Samuel D. Marshall Sep 1989

Protein Relationships Among Titmice (Parus), Frank B. Gill, David H. Funk, Bengt Silverin Jun 1989

Seasonal And Diurnal Body Weight Variations In Titmice, Based On Analyses Of Individual Birds, Svein Haftorn Jun 1989

Laying Dates And Clutch Size In The Great Tit, C. M. Perrins, R. H. Mccleery Jun 1989

Social Organization And Dominance Behavior In Some Parus Species, Olav Hogstad Jun 1989

Ecology Of Non-Breeding Social Systems Of Parus, Jan Ekman Jun 1989