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SORASearchable Ornithological Research Archive | Help |
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The Condor Volume 89, Number 3 August, 1987 |
Organochlorines, Predators and Reproductive Success of the Red-Necked Grebe in Southern Manitoba (DjVu | PDF)
Ken D. De Smet , 460-467
Primary Molt of California Condors (DjVu | PDF)
Noel F. R. Snyder , Eric V. Johnson , David A. Clendenen , 468-485
What Limits Mourning Doves to a Clutch of Two Eggs? (DjVu | PDF)
David Westmoreland , Louis B. Best , 486-493
Morphology of Hatchling Hooded Crows and Its Relation To Egg Volume (DjVu | PDF)
Gunnar Rofstad , Jostein Sandvik , 494-499
A Complex Vocalization of the Black-Capped Chickadee. II. Repertoires, Dominance and Dialects (DjVu | PDF)
Millicent S. Ficken , Charles M. Weise , James A. Reinartz , 500-509
The Vocal Repertoire of the Red Junglefowl; A Spectrographic Classification and the Code of Communication (DjVu | PDF)
Nicholas E. Collias , 510-524
Age-Class Variation in Foraging Techniques by Brown Pelicans (DjVu | PDF)
Robert A. Carl , 525-533
Multiscale Associations between Cavity-Nesting Birds and Features of Wyoming Streamside Woodlands (DjVu | PDF)
Kevin J. Gutzwiller , Stanley H. Anderson , 534-548
The Summer Biology of an Unstable Insular Population of White-Crowned Sparrows in Oregon (DjVu | PDF)
James R. King , L. Richard Mewaldt , 549-565
Feeding Methods and Efficiencies of Selected Frugivorous Birds (DjVu | PDF)
Mercedes S. Foster , 566-580
Population Estimates and Breeding Biology of the Petrels Pterodroma Externa And P. Longirostris on Isla Alejandro Selkirk, Juan Fernandez Archipelago (DjVu | PDF)
M. DE L. Brooke , 581-586
Do Nest Building and First Egg Dates Reflect Settlement Patterns of Females (DjVu | PDF)
Bridget J. Stutchbury , Raleigh J. Robertson , 587-593
Seasonal Time-Energy Budgets of Free-Living Chukars in the Negev Desert (DjVu | PDF)
Nurit Carmi-Winkler , A. Allan Degen , Berry Pinshow , 594-601
Effect of Group Size and Location Within the Group on the Foraging Behavior of White Ibises (DjVu | PDF)
Daniel R. Petit , 602-609
Fecal Sac Dispersal By Prothonotary Warblers: Weatherhead's Hypothesis Re-Evaluated (DjVu | PDF)
Daniel R. Petit , Lisa J. Petit , 610-613
Breeding Bird Populations During Twenty-Five years of Postfire Succession in the Sierra Nevada (DjVu | PDF)
Martin G. Raphael , Michael L. Morrison , Michael P. Yoder-Williams , 614-626
The Ecology and Energetics of Chick Provisioning by Black Guillemots (DjVu | PDF)
D. K. Cairns , 627-635
Landbird Productivity in Central Coastal California: The Relationship to Annual Rainfall, and a Reproductive Failure in 1986 (DjVu | PDF)
David F. DeSante , Geoffrey R. Geupel , 636-653
SHORT COMMUNICATIONS
Observations on Two Rare Birds, Upucerthia Albigula and Conirostrum Tamarugenese, from the andes of Southwestern Peru (DjVu | PDF)
Thomas S. Schulenberg , 654-658
Nest Site Selection by Elf Owls in Saguaro National Monument, Arizona (DjVu | PDF)
M. Susanna Goad , R. William Mannan , 659-662
An Improved Procedure for Counting Pores in Avian Eggshells (DjVu | PDF)
Gilbert W. Blankespoor , 663-665
Nesting of the Ross Goose and Blue-Phase Snow Goose in the Sagavanirktok River Delta, Alaska (DjVu | PDF)
Stephen R. Johnson , Declan M. Troy , 665-667
Burrow Nesting by Common Barn-Owls in North Central Colorado (DjVu | PDF)
Brian A. Millsap , Patricia A. Millsap , 668-670
Two Recent Records of Neotropical Eagles in Southern Veracruz, Mexico (DjVu | PDF)
Eduardo Inigo E. , Mario Ramos , Fernando Gonzalez , 671-672
Unusual Records From Coahuila, Mexico (DjVu | PDF)
Aldegundo Garza De Leon , 672-673
First Description of the Nest of the Olive Finch, Lysurus Castaneiceps (DjVu | PDF)
Thomas S. Schulenberg , Frank B. Gill , 673-674
Conspecific Egg Discrimination in American Coots (DjVu | PDF)
Todd W. Arnold , 675-676
Grasshopper Consumption and Summer Flocks of Nonbreeding Swainson's Hawks (DjVu | PDF)
C. G. Johnson , L. A. Nickerson , M. J. Bechard , 676-678
BOOKS RECEIVED (DjVu | PDF)
682-683
NEWS AND NOTES (DjVu | PDF)
Page 684
Cover to Cover (DjVu)
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Blair
O. Wolf, SORA Coordinator![]() Cooper Ornithological Society |