eWestern Birds
The Quarterly Journal of Western Field OrnithologistsVol. 29, No. 4
December 1998
Western Field Ornithologists

Contents
MAIN ARTICLES
Biology of the California Gnatcatcher
John T. Rotenberry, Thomas A. Scott
Featured Photo
Jon R. King, Steve N. G. Howell
Western Birds, Index, Volume 29, 1998
Jack W. Schlotte, Philip Unitt
Book Reviews
The Large Gulls of North America
Steve N. G. Howell
A Guide to the Nests, Eggs, and Nestlings of North American Bird
Stacy Small
Breeding Biology
Has Brood Parasitism Selected for Earlier Nesting in the California Gnatcatcher?
Michael A. Patten, Kurt F. Campbell
Breeding Behavior of the California Gnatcatcher in Southwestern San Diego County, California
Mary A. Grishaver, Patrick J. Mock, Kristine L. Preston
Breeding and Dispersal Biology of the California Gnatcatcher
in Central Orange County
J. Paul Galvin
Community Relationships
Is the California Gnatcatcher a Good Umbrella Species?
Scott A. Fleury, Patrick J. Mock, John F. O'Leary
Is the California Gnatcatcher an Indicator of Bird-Species Richness
in Coastal Sage Scrub?
Mary K. Chase, John T. Rotenberry, Michael D. Misenhelter
General Biology and Behavior
California Gnatcatcher Territorial Behavior
Kristine L. Preston, Patrick J. Mock, Mary A. Grishaver, Eric A. Bailey, David F. King
California Gnatcatcher Vocalization Behavior
Kristine L. Preston, Mary A. Grishaver, Patrick J. Mock
Factors Affecting Estimates of California Gnatcatcher Territory Size
Jonathan L. Atwood, Sophia H. Tsai, Carol A. Reynolds, James C. Luttrell,
Michael R. Fugagli
Molt and Plumage Variation by Age and Sex in the California and Black-Tailed Gnatcatchers
Peter Pyle, Philip Unitt
Habitat Relationships
Historical Decline of Coastal Sage Scrub in the Riverside-Perris Plain, California
Richard A. Minnich, Raymond J. Dezzani
Coastal Sage Scrub Variations of San Diego County and their Influence on the Distribution of the California Gnatcatcher
Kenneth L. Weaver
Use of Refugia by California Gnatcatchers Displaced by Habitat Loss
Jonathan L. Atwood, David R. Bontrager, Amy L. Gorospe
Energetic Constraints to the Distribution and Abundance of the California Gnatcatcher
Patrick J. Mock
California Gnatcatcher Use of Habitats Other than Coastal Sage Scrub
Kurt F. Campbell, Richard A. Erickson, William E. Haas, Michael A. Patten
Notes
Unmated Male California Gnatcatcher Feeds Fledgling Bushtits
Richard A. Erickson
A New Site of Sympatry of the California and Black-Tailed Gnatcatchers in the United States
Kenneth L. Weaver
Population Dynamics
Six Years of Synchronous California Gnatcatcher Population Fluctuations at Two Locations in Coastal Orange County, California
Richard A. Erickson, Karen L. Miner
Distribution and Population Size of California Gnatcatchers on the Palos Verdes Peninsula, 1993-1997
Jonathan L. Atwood, Sophia H. Tsai, Carol A. Reynolds, Michael R. Fugagli
Dispersal Capability of the California Gnatcatcher
Eric A. Bailey, Patrick J. Mock
Range Margins
History and Status of the California Gnatcatcher in San Bernardino County, California
Liam H. Davis, Robert L. Mckernan, James S. Burns
Use of Restored Habitat
An Example of the California Gnatcatcher Nesting in Restored Coastal Sage Scrub
M. W. (Bill) O'Connell, Richard A. Erickson
Use of Restored Coastal Sage Scrub Habitat by California Gnatcatchers in a Park Setting. 439-446.
Karen L. Miner, Adrian Wolf, Robb Hirsch
Occurrence and Management Considerations of California Gnatcatchers Along San Diego County Highways
Peter Famolaro, Jeff Newman