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The Wilson Bulletin  
  Volume 92, Number 4
  December 1980
TERRITORIAL BEHAVIOR OF THE SAGE SPARROW: SPATIAL AND RANDOM ASPECTS (DjVu | PDF)
TERRELL RICH ,  425-438

INTERSEXUAL NICHE PARTITIONING IN DOWNY WOODPECKERS (DjVu | PDF)
JOSEPH B. WILLIAMS ,  439-451

IMPLICATIONS OF JUVENILE HARASSMENT IN PURPLE MARTINS (DjVu | PDF)
CHARLES R. BROWN, ERIK J. BITTERBAUM ,  452-457

NESTLING FOODS AND FORAGING PATTERNS IN THE CLAY-COLORED SPARROW (DjVu | PDF)
RICHARD W. KNAPTON ,  458-465

GEOGRAPHIC VARIATION IN THE INSULATIVE QUALITIES OF NESTS OF THE NORTHERN ORIOLE (DjVu | PDF)
V. H. SCHAEFER ,  466-474

FALL MIGRATION OF SAW-WHET OWLS AT PRINCE EDWARD POINT, ONTARIO (DjVu | PDF)
R. D. WEIR, F. COOKE, M. H. EDWARDS, R. B. STEWART ,  475-488

DIRECTIONS AND TIMING OF GREAT BLUE HERON FORAGING FLIGHTS FROM A CALIFORNIA COLONY: IMPLICATIONS FOR SOCIAL FACILITATION OF FOOD FINDING (DjVu | PDF)
HELEN M. PRATT ,  489-496

CHOICE OF NEST BOXES BY COMMON GOLDENEYES IN ONTARIO (DjVu | PDF)
HARRY G. LUMSDEN, R. E. PAGE, M. GAUTHIER ,  497-505

GENERAL NOTES

First Description of the Nest, Eggs and Nestling of the Guayaquil Woodpecker (Campephilus [Phloeoceastes] Gayaquilensis) (DjVu | PDF)
MORRIS D. WILLIAMS ,  506-508

The Nest and Territoriality of a Female Tyrian Metaltail (DjVu | PDF)
BARBARA K. SNOW ,  508-509

Male Escorting and Protecting Females at the Nest Cavity in Mountain Blue Birds (DjVu | PDF)
HARRY W. POWER ,  509-511

Solitary Vireo Nest used by a Western Flycatcher (DjVu | PDF)
GEOFFREY A. HAMMERSON, BETH P. LAPIN ,  Page 511

Bilateral Wing Display in the Sage Thrasher (DjVu | PDF)
TERRELL D. G. RICH ,  512-513

A Comparison of Avian Foraging at Flowering Trees in Panama and New Guinea (DjVu | PDF)
BRUCE BEEHLER ,  513-519

Foraging by Yellow-Bellied Sapsuckers in Central Illinois During Spring Migration (DjVu | PDF)
JOSEPH B. WILLIAMS ,  519-523

Mallards Capture and Eat American Toads (DjVu | PDF)
NANCY S. MUELLER ,  523-524

Dipper Swallowed by Trout (DjVu | PDF)
CHARLES L. ELLIOTT, STEVE PECK ,  Page 524

Team-Hunting and Food Sharing in Parasitic Jaegers (DjVu | PDF)
STEPHEN G. PRUETT-JONES ,  524-526

Incubating Wood Duck and Hooded Merganser Hens Killed by Black Rat Snakes (DjVu | PDF)
T. T. FENDLEY ,  526-527

Sandhill Cranes Nesting in Illinois (DjVu | PDF)
JOEL GREENBERG ,  Page 527

A Mallard x Mottled Duck Hybrid (DjVu | PDF)
DAVID A. NELSON ,  527-529

ORNITHOLOGICAL LITERATURE (DjVu | PDF)
530-539

INDEX TO VOLUME 92, 1980 (DjVu | PDF)
NANCY J. FLOOD, GARY R. BORTOLOTTI, DAVID J. BROOKS ,  540-562

Front Matter (DjVu | PDF)

Back Matter (DjVu | PDF)

Cover to Cover (DjVu)

 

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