Contents
Observations of the Nesting Biology of the Guiana Crested Eagle (morphnus Guianensis)
Richard O. Bierregaard Jr.
Tundra Swans in Northeastern Keewatin District, N.w.t.
Margaret A. Mclaren and Peter L. Mclaren
Ring-billed Gulls Display Sexually Toward Offspring and Mates during Post-hatching
Peter M. Fetterolf
Fish Dropped on Breeding Colonies as Indicators of Least Tern Food Habits
Jonathan L. Atwood and Paul R. Kelly
Relationship of Breeding Bird Density and Diversity to Habitat Variables in Forested Wetlands
Bryan L. Swift, Joseph S. Larson, and Richard M. Degraaf
A Comparison of Breeding Ecology and Reproductive Success Between Morphs of the White-throated Sparrow
Richard W. Knapton, Ralph V. Cartar, and J. Bruce Falls
Territory Preference of Vesper Sparrows in Cropland
Louis B. Best and Nicholas L. Rodenhouse
Censusing Breeding Red-winged Blackbirds in North Dakota
Jerome F. Besser and Daniel J. Brady
Ornithological Literature
Wilson Bulletin
Ornithological News and Notes
Wilson Bulletin
Covers
Back Matter (PDF)
Wilson Bulletin
Front Matter (PDF)
Wilson Bulletin
General Notes
The Songs of Microcerculus Wrens in Costa Rica
F. G. Stiles
Cowbird Nest Selection
Peter E. Lowther
Niche Relationships in Wintering Mixed-species Flocks in Western Washington
Kirk E. Lagory, Mary Katherine Lagory, Dennis M. Meyers, and Steven G. Herman
Sexual Dimorphism and Parental Role Switching in Gila Woodpeckers
Steven Martindale and Donald Lamm
Effect of Litter on Leaf-scratching in Emberizines
Jack P. Hailman
Quantitative Assessment of the Nesting Habitat of Wilson's Phalarope
Mary L. Bomberger
First Confirmed Nesting of a Goshawk in Maryland
D. Daniel Boone
Pair Separation in Canada Geese
Michael C. Zicus
Food Habits of Wintering Brandt's Cormorants
Larry G. Talent
Opportunistic Feeding by White-tailed Hawks at Prescribed Burns
Michael E. Tewes
Swallows Foraging on the Ground
Anthony J. Erskine
Serum Chemical Levels in Captive Female House Sparrows
John W. Parrish and Michelle L. Mote
Response to Peck
Peter J. Blancher and Raleigh J. Robertson