Catalog of Oregon Seabird Colonies

Citation: Naughton, M. B., D. S. Pitkin, R. W. Lowe, K. J. So, and C. S. Strong. 2007. Catalog of Oregon seabird colonies. U.S. Department of Interior, Fish and Wildlife Service, Biological Technical Publication FWS/BTP-R1009-2007, Washington, D.C.

Abstract: The rocky islands and rugged habitats of the outer Oregon coast and the low flat islands of the Columbia River estuary provide habitat for approximately 1.3 million nesting seabirds representing 15 species. Current and historical information on colony locations and estimates of breeding seabirds were compiled into databases, for all known seabird colonies in Oregon. A total of 393 colonies were identified, and maps and data tables for each colony are presented in this catalog. The data tables include counts of nests and birds, where available, and estimates of the number of breeding birds for each species at a colony. Specific information regarding date, observers, type of survey, quality of the estimate, and source of the data are provided for each record. The geographic scope of this catalog encompasses seabird colonies in marine and estuarine environments. Marbled Murrelets, which nest solitarily in habitats distinctly different from the rest of the seabird community, are not included in this catalog.

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Download the complete Catalog of Oregon Seabird Colonies (Low Quality PDF - 16.7 MB).

Download the catalog by section:

• Table of Contents, Acknowledgments, and Abstract (High Quality PDF - 50 KB)
• Introduction (High Quality PDF - 623 KB)
• Methods (High Quality PDF - 304 KB)
• How to Use This Catalog (High Quality PDF - 268 KB)
• Literature Cited (High Quality PDF - 303 KB)
• Maps and Data Tables
  • Area 195 - Columbia River (High Quality PDF - 934 KB)
  • Area 219 - Tillamook Head to south of Cascade Head (High Quality PDF - 17.9 MB)
  • Area 243 - Boiler Bay to south of Heceta Head (High Quality PDF - 7.8 MB)
  • Area 270 North - Siuslaw River to Bandon (High Quality PDF - 5.4 MB)
  • Area 270 South - Blacklock Point to Brookings (High Quality PDF - 13.7 MB)
• Appendices (High Quality PDF - 1.9 MB)
  • Appendix A - List of People that Conducted Surveys Included in this Catalog
  • Appendix B - Lists of Active Colonies by Species
  • Appendix C - List and Descriptions of All Oregon Seabird Colonies
  • Appendix D - Index of Named Oregon Seabird Colonies
  • Appendix E - Data Source Codes for Catalog Tables
  • Appendix F - Archive Locations fo Major Unpublished Data Sets

GIS Data:
Most Recent Accurate (MRA) Oregon Seabird Colony Locations and Estimated Number of Breeding Birds as of 2007 (metadata)