The INSTITUTE for BIRD POPULATIONS
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BIRDS OF PACIFIC NORTHWEST NATIONAL PARKS
Northwest National Parks banner photo
Ranging from sea level to the top of 14,410’ Mount Rainier, the national parks of the Pacific Northwest encompass a stunning diversity of species and ecosystems, including temperate rainforests, rugged, undeveloped coastline, and glaciated peaks. Much of these are within vast tracts of roadless mountainous and forested areas.
In summer IBP deploys a crew of expert bird surveyors, who conduct point counts of all bird species heard and seen at pre-selected, mostly off-trail locations that are visited year after year. Surveyors hike hundreds of miles collecting data that allow us to track populations and distributions of dozens of bird species. This information yields important findings about habitat needs of Pacific Northwest birds, the status of declining populations, and the effects of climate change and other large-scale ecological processes.
Since 2001, IBP has been working with the National Park Service and the US Geological Survey to study the distribution and abundance of birds in the following Pacific Northwest national parks:
  • Mount Rainier National Park
  • North Cascades National Park
  • Olympic National Park
  • San Juan Island National Historical Park
  • Lewis and Clark National Historical Park

Information on the North Coast and Cascades Network

For more information about all of IBP’s work in the Pacific Northwest Parks, or if you are interested in collaborating with IBP to develop or implement avian monitoring projects elsewhere, please contact Mandy Holmgren.
Northwest National Parks map
 
To view an interactive map of bird monitoring survey transects in Mount Rainier, North Cascades, and Olympic National Parks click here.
Photo Credits: Top of Page, Seabamirum; Right Column Bottom, Mandy Holmgren
RECENT RESEARCH
In a paper published in August 2017 in the journal Ecosphere, IBP Scientists, along with NPS and USGS colleagues, develop a Bayesian analytical framework for analyzing avian point count data, and applying it to ten years of point count data from Mount Rainier, North Cascades, and Olympic National Parks.
 
Bird Photo
 
The study assessed the role of annual variation in precipitation and temperature in driving annual population changes for individual species, and revealed that populations of most of the 39 species studied were stable or increasing between 2005 and 2014. You can read the paper here.
 
Bird Photo
 
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SELECTED PUBLICATIONS
Peer-reviewed Publications
Ray, C., M.L. Holmgren, R.L. Wilkerson, R.B. Siegel, and J.R. Boetsch, K.J. Jenkins, and J.I. Ransom. 2019. Trends in landbird density at two national parks in fragmented, mixed-use landscapes of the Pacific Northwest. The Northwestern Naturalist 100:1-25. PDF
Ray, C., J.F. Saracco, M.L. Holmgren, R.L. Wilkerson, R.B. Siegel, K.J. Jenkins, J.I. Ransom, P.J. Happe, J.R. Boetsch, and M.H. Huff. 2018. Landbird population trends in mountain and historical parks of the North Coast and Cascades Network: 2005–2016 synthesis. Natural Resource Report NPS/NCCN/NRR—2018/1673. National Park Service, Fort Collins, CO. PDF
Ray, C., J. Saracco, K. Jenkins, M. Huff, P. Happe, and J. Ransom. 2017. Development of a robust analytical framework for assessing landbird population trends, dynamics and relationships with environmental covariates in the North Coast and Cascades Network. National Park Service Natural Resource Report NPS/NCCN/NRR—2017/1483. National Park Service, Fort Collins, CO. PDF
Ray, C., J.F. Saracco, M.L. Holmgren, R.L. Wilkerson, R.B. Siegel, K.J. Jenkins, J.I. Ransom, P.J. Happe, J.R. Boetsch, and M.H. Huff. 2017. Recent stability of resident and migratory landbird populations in National Parks of the Pacific Northwest. Ecosphere 8:e01902. PDF
Saracco, J.F., A.L. Holmgren, R.L. Wilkerson, R.B. Siegel, R.C. Kuntz II, K.J. Jenkins, P.J. Happe, J.R. Boetsch, and M.H. Huff. 2014. Landbird trends in National Parks of the North Coast and Cascades Network, 2005-2012. U.S. Geological Survey open-file report 2014–1202. PDF
Siegel, R.B., R.L. Wilkerson, R.C. Kuntz II, J.F. Saracco, and A.L. Holmgren. 2012. Elevation ranges of birds at Mount Rainier National Park, North Cascades National Park Service Complex, and Olympic National Park. The Northwestern Naturalist 93:23-39. PDF
Other Publications and Reports
Holmgren, A.L., R.L. Wilkerson, R.B. Siegel, and J.I. Ransom. 2017. North Coast and Cascades Network landbird monitoring: report for the 2016 field season. Natural Resource Report NPS/NCCN/NRR—2017/1495. National Park Service, Fort Collins, CO. PDF
Holmgren, A.L., R.L. Wilkerson, R.B. Siegel, and J.I. Ransom. 2016. North Coast and Cascades Network landbird monitoring report for the 2015 Field Season. Natural Resource Report NPS/NCCN/NRR—2016/1241. The Institute for Bird Populations, Point Reyes Station, CA, and The National Park Service, North Cascades National Park Service Complex, Sedro-Woolley, WA. PDF
Holmgren, A.L., R.L. Wilkerson, R.B. Siegel, and P.J. Happe. 2015. North Coast and Cascades Network landbird monitoring: report for the 2014 field season. Natural Resource Data Series NPS/NCCN/NRDS—2015/502. National Park Service, Fort Collins, CO. PDF
Holmgren, A.L., R.L. Wilkerson, R.B. Siegel, and P.J. Happe. 2014. North Coast and Cascades Network landbird monitoring: report for the 2013 field season. Natural Resource Data Series NPS/NCCN/NRDS—2014/691. National Park Service, Fort Collins, CO. PDF
Holmgren, A.L., R.L. Wilkerson, R.B. Siegel, and R.C. Kuntz II. 2013. North Coast Cascades Network landbird monitoring report for the 2012 field season. Natural Resource Data Series NPS/NCCN/NRDS—20113/523. National Park Service, Fort Collins, CO. PDF
Holmgren, A.L., R.L. Wilkerson, R.B. Siegel, and R.C. Kuntz II. 2012. North Coast Cascades Network landbird monitoring report for the 2011 field season. Natural Resource Report NPS/NCCN/NRTR. National Park Service, Fort Collins, CO. PDF
Holmgren, A., R.L. Wilkerson, R.B. Siegel, and R.C. Kuntz II. 2011. North Coast and Cascades Network Landbird Monitoring. Report for the 2010 Field Season. The Institute for Bird Populations, Point Reyes Station, CA.
Holmgren, M., R.L. Wilkerson, and R.B. Siegel. 2011. North Coast and Cascades Network landird monitoring: report for the 2010 field season. Natural Resources Technical Report NPG/NCCN/NRTR-2011/473. PDF
Holmgren, A., R.L. Wilkerson, R.B. Siegel, and R.C. Kuntz II. 2010. North Coast Cascades Landbird Monitoring; Report for the 2009 Field Season. The Institute for Bird Populations, Point Reyes Station, CA.
Siegel, R.B, R.C. Kuntz II, R.L. Wilkerson, and K.D. Kuhlman. 2010. Surveying for Spotted Owls in the northeastern portion of North Cascades National Park Service Complex, 2009-2010: report for the 2009 field season. Natural Resource Technical Report NPS/NCCN/NRTR/2010/334. National Park Service, Fort Collins, CO. PDF
Wilkerson, R.L., R.B. Siegel, and R.C. Kuntz II. 2010. North Coast Cascades Network landbird monitoring report for the 2009 field season. Natural Resource Report NPS/NCCN/NRTR—2010/392. PDF
Siegel, R.B., and R.C. Kuntz II. 2009. Designing a landbird monitoring program at North Cascades National Park Service Complex. Natural Resource Report NPS/NCCN/NRR—2009/075. PDF
Siegel, R.B., R.L. Wilkerson, and R.C. Kuntz II. 2009. Landbird inventory for Lewis and Clark National Historical Park (2006). Natural Resource Technical Report NPS/NCCN/NRTR—2009/166. National Park Service, Fort Collins, CO. PDF
Siegel, R.B., R.L. Wilkerson, and R.C. Kuntz. 2009. Landbird inventory for Lewis and Clark National Historical Park (2004). Natural Resource Technical Report NPS/NCCN/NRTR2009/165. National Park Service, Fort Collins, CO. PDF
Siegel, R.B., R.L. Wilkerson, and S. Hall. 2009. Landbird inventory for Olympic National Park (2002-2003). Natural Resource Technical Report NPS/NCCN/NRTR¬2009/159. National Park Service, Fort Collins, CO.
Siegel, R.B., R.L. Wilkerson, H.K. Pedersen, and R.C. Kuntz II. 2009. Landbird inventory of San Juan Island National Historical Park (2002). Natural Resource Technical Report NPS/NCCN/NRTR2009/156. National Park Service, Fort Collins, CO. PDF
Siegel, R.B., R.L. Wilkerson, R.C. Kuntz II, and J. McLaughlin. 2009. Landbird inventory for North Cascades National Park Service Complex (2001-2002). Natural Resource Technical Report NPS/NCCN/NRTR¬2009/152. National Park Service, Fort Collins, CO. PDF
Siegel, R.B., Wilkerson, R.L., and R.C. Kuntz II. 2009. Landbird Monitoring in the North Coast and Cascades Network Report for the 2006 Pilot Field Season. Natural Resource Technical Report NPS/NCCN/NRTR—2009/168. PDF
Wilkerson, R.L., R.B. Siegel, and R.C. Kuntz II. 2009. Landbird monitoring in the North Coast and Cascades Monitoring Network: report for the 2008 field season. Report to the North Coast and Cascades Network of the National Park Service. The Institute for Bird Populations, Point Reyes Station, CA. PDF
Siegel, R.B., Wilkerson, R.L., and R.C. Kuntz II. 2008. Landbird Monitoring in the North Coast and Cascades Network Report for the 2007 Field Season. Natural Resource Technical Report NPS/NCCN/NRTR—2008/114. PDF
Nott, M.P. 2007. Demographics monitoring modeling and management of landbird populations in Pacific Northwest forests: an application of the MAPS dataset. The Institute for Bird Populations, Point Reyes Station, CA.
Siegel, R.B., R.L. Wilkerson, K.J. Jenkins, R.C. Kuntz II, J.R. Boetsch, J.P. Schaberl, and P.J. Happe. 2007. Landbird monitoring protocol for national parks in the North Coast and Cascades Network. U.S. Geological Survey Techniques and Methods 2-A6. PDF
Pyle, P., D.F. DeSante, M.P. Nott, and D.R. Kaschube. 2005. The MAPS Program in the Pacific Northwest: current status and future direction. Report submitted to the Bureau of Land Management, Oregon State Office for Order HAP044166. The Institute for Bird Populations, Point Reyes Station, CA. PDF
Wilkerson, R.L., R.B. Siegel, and J. Schaberl. 2005. Landbird inventory for Mount Rainier National Park (2003-2004). Natural Resource Technical Report NPS/NCCN/NRTR¬2009/164. National Park Service, Fort Collins, CO. PDF
Siegel, R.B., and R.L. Wilkerson. 2004. Landbird Inventory for Olympic National Park, Final Report. The Institute for Bird Populations, Point Reyes Station, CA. PDF
Siegel, R.B. 2000. Methods for monitoring landbirds. U.S. Department of Interior National Park Service Technical Report NPS/NRNOCA/NRTR/00-03. PDF