Publications
Increasing Access to Science
At HawkWatch International, we believe the public should have easy access to the most up-to-date scientific research. Please contact contact us or the authors directly to request copies of reports as available. Below you will find our published scientific papers as well as yearly reports on our migration network.
Scientific Papers
Wallace ZP, Bedrosian BE, Dunk JR, LaPlante DW, Woodbridge B, et al. (2024) Predicting the spatial distribution of wintering golden eagles to inform full annual cycle conservation in western North America. PLOS ONE 19(1): e0297345. Read More.
Murgatroyd, M., et al. Using GPS tracking to monitor the breeding performance of a low-density raptor improves accuracy, and reduces long-term financial and carbon costs. Royal Society Open Science, vol. 10, no. 8, 2023. Read More.
Lonsdorf, E., Gerber, J., Ray, D., Slater, S., and Allison, T. 2023. Assessing carcass relocation for offsetting golden eagle mortality at wind energy facilities. Journal of Wildlife Management e22478. Read More.
Anjolene R. Hunt, Jesse L. Watson, Jason M. Winiarski, Ron R. Porter, Julie A. Heath. 2023. American Kestrel Migration: Insights and Challenges from Tracking Individuals across the Annual Cycle. Journal of Raptor Research. Read More.
Evan R. Buechley, Dave Oleyar, Jesse L. Watson, Jennifer Bridgeman, Steven Volker, David A. Goldade, Catherine E. Swift, Barnett A. Rattner. Preliminary Evidence of Anticoagulant Rodenticide Exposure in American Kestrels (Falco sparverius) in the Western United States. Journal of Raptor Research. Read More.
Cervantes, F., Murgatroyd, M., Allan, D.G., Farwig, N., Kemp, R., Krüger, S., Maude, G., Mendelsohn, J., Rösner, S., Schabo, D.G., Tate, G., Wolter, K. and Amar, A. 2023. A utilization distribution for the global population of Cape Vultures (Gyps coprotheres) to guide wind energy development. Ecological Applications. Accepted Author Manuscript e2809. Read More.
Dave Oleyar, Laurie J. Goodrich, Danielle Ethier, David Brandes, Rebekah Smith, Julie Brown, and Jason Sodergren. 2023. Thirty Years of Migration and Winter Count Data Indicate Regional Differences In Population Trajectories For American Kestrels In North America. Journal of Raptor Research. Read More.
Jesse L. Watson and Dave Oleyar. 2023. Documenting Occurrence and Rates of Spraddle-Leg in American Kestrel Nestlings within a Nest Box Monitoring Network. Journal of Raptor Research. Read More.
Slater, Steven J., Maloney, Dustin M., and Taylor, Jessica M. 2022. Golden eagle use of winter roadkill and response to vehicles in the western United States. The Wilderness Society. Read More.
Millsap, Brian A., Zimmerman, Guthrie S., Kendall, William L., Barnes, Joseph G., Braham, Melissa A., Bedrosian, Bryan E., Bell, Douglas A., Bloom, Peter H., Crandall, Ross H., Domenech, Robert, Driscoll, Daniel, Duerr, Adam E., Gerhardt, Rick, Gibbs, Samantha E. J., Harmata, Alan R., Jacobson, Kenneth, Katzner, Todd E., Knight, Robert N., Lockhart, J. Michael, McIntyre, Carol, Murphy, Robert K., Slater, Steven J., Smith, Brian W., Smith, Jeff P., Stahlecker, Dale W., and Watson, James W.. 2022. Age-Specific Survival Rates, Causes of Death, and Allowable Take of Golden Eagles in the Western United States. Ecological Applications e2544. Read More
Krueger, S., Coverdale, B., Ottinger, M., Bowerman, W., Buechley, E., Phipps, L., Garbett, R., & Gore, M., & Shaffer, L., Harrell, R., & Cherkaoui, S., Davies, J., Thompson, L. 2021. Assessing African Vultures as Biomonitors and Umbrella Species. Frontiers in Conservation Science. Read More.
Hixson, K.M., Slater, S.J., Knight, R.N. and Lonsinger, R.C. 2021. Seasonal variation in resource selection by subadult golden eagles in the Great Basin Desert. Wildlife Biology. Read More.
Travis L. Booms, Neil A. Paprocki, Joseph M. Eisaguirre, Chris P. Barger, Stephen B. Lewis, Greg A. Breed. Golden Eagle Abundance in Alaska: Migration Counts and Movement Data Generate a Conservative Population Estimate. Journal of Raptor Research. Read More.
Buechley, E, Girardello, M, Santangeli, A., Ruffo, A, et al. 2021. Priority areas for vulture conservation in the Horn of Africa largely fall outside the protected area network. Bird Conservation International. Read More.
Eichenwald AJ, Amar A, Tyrrell P, Buechley ER and Virani MZ. 2021. Declines in an Augur Buzzard Buteo augur Population in a Region of Increasing Human Development. Frontiers in Ecology and Evolution. Read More.
Murgatroyd, M., Buechley, E., de la Cruz, A., Roman, J., Caucal, G., Ruffo, A., Rayaleh, H., and Sekercioglu, C. 2021. Observations of large-scale diurnal raptor migration in the Horn of Africa. Read More.
Buechley, ER, Oppel, S, Efrat, R, et al. 2021. Differential survival throughout the full annual cycle of a migratory bird presents a life‐history trade‐off. Journal of Animal Ecology. Read More.
Murgatroyd, M., Bouten, W., and Amar, A. 2021. A predictive model for improving placement of wind turbines to minimise collision risk potential for a large soaring raptor. Journal of Applied Ecology. Read More.
Steven J. Slater, James F. Dwyer, Megan Murgatroyd. Conservation Letter: Raptors and Overhead Electrical Systems. Journal of Raptor Research. June 2020. Read More.
Esther Sebastián‐González, Zebensui Morales‐Reyes, Francisco Botella, Lara Naves‐Alegre, Juan M. Pérez‐García, Patricia Mateo‐Tomás, Pedro P. Olea, Marcos Moleón, Jomar M Barbosa Fernando Hiraldo Eneko Arrondo José A. Donázar Ainara Cortés‐Avizanda Nuria Selva Sergio A. Lambertucci Aishwarya Bhattacharjee Alexis L. Brewer Erin F. Abernethy Kelsey L. Turner James C. Beasley Travis L. DeVault Hannah C. Gerke Olin E. Rhodes Jr Andrés Ordiz Camilla Wikenros Barbara Zimmermann Petter Wabakken Christopher C. Wilmers Justine A. Smith Corinne J. Kendall Darcy Ogada Ethan Frehner Maximilian L. Allen Heiko U. Wittmer James R. A. Butler Johan T. du Toit Antoni Margalida Pilar Oliva‐Vidal David Wilson Klemen Jerina Miha Krofel Rich Kostecke Richard Inger Esra Per Yunus Ayhan Hasan Ulusoy Doğanay Vural Akino Inagaki Shinsuke Koike Arockianathan Samson Paula L. Perrig Emma Spencer Thomas M. Newsome Marco Heurich José D. Anadón Evan R. Buechley José A. Sánchez‐Zapata. Network structure of vertebrate scavenger assemblages at the global scale: drivers and ecosystem functioning implications. Ecography. May 2020. Read More.
Lindy J. Thompson, David R. Barber, Marc J. Bechard, André J. Botha, Kerri Wolter, Walter Neser, Evan R. Buechley, Richard Reading, Rebecca A. Garbett, Pete Hancock, Glyn Maude, Munir Z. Virani, Simon Thomsett, Hansoo Lee, Darcy Ogada, Clive R. Barlow, Keith L. Bildstein. Variation in monthly sizes of home‐ranges of Hooded Vultures Necrosyrtes monachus in western, eastern and southern Africa. Ibis: International Journal of Avian Science. March 2020. Read More.
Christopher J. W. McClure, Sarah E. Schulwitz, David L. Anderson, Bryce W. Robinson, Elizabeth K. Mojica, Jean-Francois Therrien, M. David Oleyar, Jeff Johnson. Defining Raptors and Birds of Prey. Journal of Raptor Research. December 2019. Read More
W. Louis Phipps, Pascual López-López, Evan R. Buechley, Steffen Oppel, Ernesto Álvarez, Volen Arkumarev, Rinur Bekmansurov, Oded Berger-Tal, Ana Bermejo, Anastasios Bounas, Isidoro Carbonell Alanís, Javier de la Puente, Vladimir Dobrev, Olivier Duriez, Ron Efrat, Guillaume Fréchet, Javier García, Manuel Galán, Clara García-Ripollés, Alberto Gil, Juan José Iglesias-Lebrija, José Jambas, Igor V. Karyakin, Erick Kobierzycki, Elzbieta Kret, Franziska Loercher, Antonio Monteiro, Jon Morant Etxebarria, Stoyan C. Nikolov, José Pereira, Lubomír Peške, Cecile Ponchon, Eduardo Realinho, Victoria Saravia, Cağan H. Sekercioğlu, Theodora Skartsi, José Tavares, Joaquim Teodósio, Vicente Urios and Núria Vallverdú. Spatial and Temporal Variability in Migration of a Soaring Raptor Across Three Continents. Frontiers in Ecology and Evolution. September 2019. Read More.
Andrea Santageli, Marco Girardello, Evan R. Buechley, Joanna Eklund, W. Louis Phipps. Navigating spaces for implementing raptor research and conservation under varying levels of violence and governance in the Global South. Biological Conservation. August 2019. Read More.
Evan R. Buechley, Andres de la Cruz Muñoza, Juan Ramirez Roman, Gabriel Caucal, Houssein Rayaleheh. Notable bird observations for Djibouti, including the first record of Semi-collared Flycatcher Ficedula semitorquata. The Bulletin of the African BIrd Club. August 2019. Read More.
Jomar Magalhães Barbosa, Juan M. Pérez‐García, Zebensui Morales‐Reyes, Francisco Botella, Pedro P. Olea, Patricia Mateo‐Tomás, Marcos Moleón, Fernando Hiraldo, Eneko Arrondo, José A. Donázar, Ainara Cortés‐Avizanda, Nuria Selva, Sergio A. Lambertucci, Aishwarya Bhattacharjee, Alexis Brewer, José D. Anadón, Erin Abernethy, Olin E. Rhodes, Jr, Kelsey Turner, James C. Beasley, Travis L. DeVault, Andrés Ordiz, Camilla Wikenros, Barbara Zimmermann, Petter Wabakken, Christopher C. Wilmers, Justine A. Smith, Corinne J. Kendall, Darcy Ogada, Evan R. Buechley, Ethan Frehner, Maximilian L. Allen, Heiko U. Wittmer, James R. A. Butler, Johan T. du Toit, John Read, David Wilson, Klemen Jerina, Miha Krofel, Rich Kostecke, Richard Inger, Arockianathan Samson, Lara Naves‐Alegre, José A. Sánchez‐Zapata. Scavenging in the Anthropocene: Human impact drives vertebrate scavenger species richness at a global scale. Global Change Biology. May 2019. Read More.
Evan R. Buechley, Andrea Santangeli, Marco Girardello, Montague H.C. Neate‐Clegg, M. Dave Oleyar, Christopher J.W. McClure, Çagan H. Şekercioğlu. Global Raptor Research and Conservation Priorities: Tropical Raptors Fall Prey to Knowledge Gaps. Diversity and Distributions. February 2019. Read More.
Andrea Santangeli, Marco Girardello, Evan Buechley, Andre Botha, Enrico Di Minin, Atte Moilanen. Priority Areas for Conservation of Old World Vultures. Conservation Biology. January 15, 2019. Read More.
Eric Chabot, Steve Slater. Evaluation of Wind‐Energy Survey Protocols for Migrating Eagle Detection. Wildlife Society Bulletin. December 2018. Read More
Tulsi R. Subedi, Munir Z. Virani, Sandesh Gurung, Ralph Buij, Hem S. Baral, Evan R. Buechley, José D. Anadón, Shahrul A. M. Sah. Estimation of Population Density of Bearded Vultures Using Line-Transect Distance Sampling and Identification of Perceived Threats In the Annapurna Himalaya Range of Nepal. Journal of Raptor Research. December 2018. Read More
Christopher J.W. McClurea, James R.S. Westrip, Jeff A. Johnson, Sarah E. Schulwitz, Munir Z. Virani, Robert Davies, Andrew Symes, Hannah Wheatley, Russell Thorstrom, Arjun Amar, Ralph Buij, Victoria R. Jones, Nick P. Williams, Evan R. Buechley, Stuart H.M. Butchart. State of the world’s raptors: Distributions, threats, and conservation recommendations. Biological Conservation. September 6, 2018. Read More
Buechley, E., Oppel, S., Beatty, W., Nikolov, S., Dobrev, D., Arkumarev, V., Saravia, V., Bougain, C., Bounas, A., Kret, E., Skartsi, T., Aktay, L., Aghababyan, K., Frehner, E., Şekercioğlu, Ç. . Identifying critical migratory bottlenecks and high‐use areas for an endangered migratory soaring bird across three continents. Journal of Avian Biology. April 2018. Read More
Buechley, E., McGrady, M., Ç.oban, E., Şekercioğlu, Ç.. Satellite tracking a wide-ranging endangered vulture species to target conservation actions in the Middle East and East Africa. Biodiversity and Conservation. March 19, 2018. Read More
Jessi L. Brown, Bryan Bedrosian, Douglas A. Bell, Melissa A. Braham, Jeff Cooper, Ross H. Crandall, Joe DiDonato, Robert Domenech, Adam E. Duerr, Todd E. Katzner, Michael J. Lanzone, David W. LaPlante, Carol L. McIntyre, Tricia A. Miller, Robert K. Murphy, Adam Shreading, Steven J. Slater, Jeff P. Smith, Brian W. Smith, James W. Watson, and Brian Woodbridge. Patterns of Spatial Distribution of Golden Eagles Across North America: How Do They Fit into Existing Landscape-scale Mapping Systems? Journal of Raptor Research 51:197-215. September 2017. Read More
Paprocki, N., Oleyar, D., Brandes, D., Goodrich, L., Crewe, T., Hoffman, S. 2017. Combining migration and wintering counts to enhance understanding of population change in a generalist raptor species, the North American Red-tailed Hawk. The Condor, American Ornithology. Volume 119, pp. 98-107. Read More
Slater, Steven J., Keller, Kent R., and Knight, Robert N. Interannual Golden Eagle (Aquila chrysaetos) Nest-Use Patterns in Central Utah: Implications for Long-Term Nest Protection. Journal of Raptor Research Jun 2017 : Vol. 51, Issue 2, pp. 129-135. Read More
Miller, R., Paprocki, N., Stuber, M., Moulton, C., and Carlisle, J. 2016. Short-eared Owl (Asio flammeus) surveys in the North American Intermountain West: utilizing citizen scientists to conduct monitoring across a broad geographic scale. Avian Conservation u0026amp; Ecology. Read More.
Utah Legacy Raptor Project. 2013. Utah West Desert Golden Eagle Management Recommendations. Department of Defense, Legacy Resources Management Program (Project #10–102). Read More
Utah Legacy Raptor Project. 2013. Utah West Desert Raptors Nest Survey and Monitoring Protocol Manual. Department of Defense, Legacy Resources Management Program (Project #10–102). Read More
Slater, S. J., K. W. Frye Christensen, R. N. Knight, K. Keller, and R. MacDuff. 2013. Great Basin Bird Species-at-risk and Invasive Species Management Partnership Final Report – Phase 3. Department of Defense, Legacy Resources Management Program (Project #10–102). Read More.
Slater, S. J., K. W. Frye Christensen, R. N. Knight, R. MacDuff, and K. Keller. 2012. Great Basin Avian Species-at-risk and Invasive Species Management through Multi-Agency Monitoring and Coordination Final Report. Department of Defense, Legacy Resources Management Program (Project #10–102). Read More.
DeLong, John P., Cox, Nancy S., Cox, Steve W., Hurst, Zachary M., and Smith, J.P. 2013. DNA sequencing reveals patterns of prey selection in migrating Sharp-shinned Hawks. The Condor by The Cooper Ornithological Society, Vol. 115, Number 1: 40-46. Read More.
2012
Smith, J.P., and DeLong, John P. 2012. Morphometric variation in Flammulated Owls captured during autumn migration in the western United States. Journal of Raptor Research 46: 108-119.
2010
Slater, S. J., and J.P. Smith. 2010. Effectiveness of raptor perch deterrents on an electrical transmission line in southwestern Wyoming. Journal of Wildlife Management 74:1080-1088.
2009
Farmer, C. J., and J. P. Smith. 2009. Migration monitoring indicates widespread declines of American Kestrels (Falco sparverius) in North America. Journal of Raptor Research 43:263-273. View File
Ruelas Inzunza, E., L. J. Goodrich, S. W. Hoffman, E. Martínez L., J. P. Smith, E. Peresbarbosa R., R. Rodríguez M., K. L. Scheuermann, S. L. Mesa O., Y. Cabrera C., N. Ferriz, R. Straub, M. M. Peñaloza P., and J. G. Barrios. 2009. Long-term conservation of migratory birds in México: the Veracruz River of Raptors project. Pages 577–589 in T.D. Rich, C. Arizmendi, D. Demarest, and C. Thompson (Editors), Tundra to tropics: connecting birds, habitats and people. Proceedings of the 4th International Partners in Flight Conference, 13-16 February 2008, McAllen, Texas. University of Texas-Pan American Press, Edinburg, Texas. View File
Smith, A. D., C. A. Lott, J. P. Smith, K. C. Donohue, S. Wittenberg, K. G. Smith, and L. Goodrich. 2009. Deuterium measurements of raptor feathers: does a lack of reproducibility compromise geographic assignment? Auk 126:41-46. View File
Smith, A. D., C. A. Lott, J. P. Smith, K. C. Donohue, S. Wittenberg, K. G. Smith, and L. Goodrich. 2009. Poor reproducibility and inference in hydrogen-stable isotope studies of avian movement: a reply to Wunder et al. 2009. Auk 126:926-931. View File
2008
Bildstein, K. L., J. P. Smith, E. Ruelas Inzunza, and R. R. Veit (Editors). 2008. State of North America’s Birds of Prey. Series in Ornithology 3. Nuttall Ornithological Club, Cambridge, MA, and American Ornithologist’s Union, Washington, DC. View intro materials and table of contents.
Chapters within:
L. J. Goodrich and J. P. Smith. Raptor migration in North America. View File
J. P. Smith, C. J. Farmer, S. W. Hoffman, K. Z. Woodruff, G. S. Kaltenecker, and P. Sherrington. Trends in autumn counts of migratory raptors in western North America. View File
J. P. Smith, C. J. Farmer, S. W. Hoffman, C. A. Lott, L. J. Goodrich, J. Simon, C. Riley, and E. Ruelas Inzunza. Trends in autumn counts of migratory raptors around the Gulf of Mexico. View File
C. Farmer, L. Goodrich, E. Ruelas Inzunza, and J. P. Smith. Conservation status of North America’s birds of prey. View File
K. L. Bildstein, J. P. Smith, and E. Ruelas Inzunza. The future of raptor migration monitoring. View File
Hull, J. M., A. C. Hull, B. N. Sacks, J. P. Smith, H. B. Ernest. 2008. Landscape characteristics influence morphological and genetic differentiation in a widespread raptor (Buteo jamaicensis). Molecular Ecology 17:810–824. View File
2007
Bildstein, K. L., J. P. Smith, and R. Yosef. 2007. Migration counts and monitoring. Pages 101–116 in D. M. Bird and K. L. Bildstein and (Editors), Raptor research and management techniques. Raptor Research Foundation, and Hancock House Publishers, Surrey British Columbia, Canada, and Blaine, Washington, USA. View File
Hull, J. M., W. Savage, J. P. Smith, N. Murphy, L. Cullen, A. C. Hutchins, and H. B. Ernest. 2007. Hybridization among buteos: Swainson’s Hawks (Buteo swainsoni)_Red-tailed Hawks (Buteo jamaicensis). Wilson Journal of Ornithology 119:579–584. View File
Smith, J. P. 2007. Fall 2005 raptor migration in the Goshute Mountains, Nevada. Great Basin Birds 9:62–68.
Smith, J. P., and A. Hutchins. 2007. Great Basin raptor nest survey: season review 2005. Great Basin Birds 9:52–61.
2006
DeLong, J. P. 2006. Pre-migratory fattening and mass gain in Flammulated Owls in central New Mexico. Wilson Journal of Ornithology 118:187-193.
Lott, C. A. 2006. A new raptor migration monitoring site in the Florida Keys: counts from 1999-2004. Journal of Raptor Research 40:200-209. View File
Lott, C. A., and J. P. Smith. 2006. A geographic-information-system approach to estimating the origin of migratory raptors in North America using hydrogen stable isotope ratios in feathers. The Auk 123:822-835. View File
2005
DeLong, J. P., T. Meehan, and R. Smith. 2005. Investigating fall movements of Flammulated Owls (Otus flammeolus) in central New Mexico using stable hydrogen isotopes. Journal of Raptor Research 39:19-25.
Hoffman, S. W., and J. P. Smith. 2005. Do Golden Eagles warrant special concern based on migration counts in the western United States? Reply to McCaffery and McIntyre. Condor 107:473-475.
Smith, J. 2005. Spatial and temporal dynamics of raptor migrations in North America. Pages 64-67 in S. Schwartz (Editor), Proceedings of the Onshore Wildlife Interactions with Wind Developments: Research Meeting V, November 3-4, 2004. National Wind Coordinating Committee, Lansdowne, Virgina.
2004
DeLong, J. P. 2004. Age determination and preformative molt in hatch-year Flammulated Owls during the fall. North American Bird Bander 29(3):111-115.
DeLong, J. P., and S. W. Hoffman. 2004. Fat stores of migrating Sharp-shinned and Cooper’s Hawks in New Mexico. Journal of Raptor Research 38:163-168. View File
McBride, T. J., J. P. Smith, H. P. Gross, and M. Hooper. 2004. Blood-lead and ALAD activity levels of Cooper’s Hawks (Accipiter cooperii) migrating through the southern Rocky Mountains. Journal of Raptor Research 38:118-124. View File
Smith, R. B., E. C. Greiner, and B. O. Wolf. 2004. Migratory movements of Sharp-shinned Hawks (Accipiter striatus) captured in New Mexico in relation to prevalence, intensity, and biogeography of avian hematozoa. Auk 121(3):837-846. View File
2003
Hoffman. S. W., and J. P. Smith. 2003. Population trends of migratory raptors in western North America, 1977-2001. Condor 105:397-419. View File
Lott, C. A., T. D. Meehan, and J. A. Heath. 2003. Estimating the latitudinal origins of migratory raptors using hydrogen and sulfur stable isotopes in feathers: influence of marine prey base. Oecologia 134: 505-510. View File
Meehan, T. D., R. N. Rosenfield, V. N. Atudorei, J. Bielefeldt, L. J. Rosenfield, A. C. Stewart, W. E. Stout, and M. A. Bozek. 2003. Variation in hydrogen stable-isotope ratios between adult and nestling Cooper’s Hawks. Condor 105:567-571. View File
Smith, R. B., T. D. Meehan, and B. O. Wolf. 2003. Assessing migration patterns of Sharp-shinned Hawks Accipiter striatus using stable-isotope and band encounter analysis. Journal of Avian Biology 34:387-392. View File
2002
Hoffman, S. W., J. P. Smith, and T. D. Meehan. 2002. Breeding grounds, winter ranges, and migratory routes of raptors in the Mountain West. Journal of Raptor Research 36:97-110. View File
Sanborn, W. 2002. Lead poisoning of North American wildlife from lead shot and lead fishing tackle. HawkWatch International, Inc., Salt Lake City, Utah. 35 pp. View File
Smith, J. P. 2002. Fall 2001 migration and satellite-tracking of raptors from the Goshute Mountains, Nevada. Great Basin Birds 5:47-50. View File
2001
DeLong, J. P., and J. A. Gessaman. 2001. A comparison of non-invasive techniques for estimating total body fat in Sharp-shinned and Cooper’s Hawks. Journal of Field Ornithology 72: 349-364. View File
Meehan, T. D., C. A. Lott, Z. D. Sharp, R. B. Smith, R. N. Rosenfield, A. C. Stewart, and R. K. Murphy. 2001. Using hydrogen isotope geochemistry to estimate the natal latitudes of immature Cooper’s Hawks migrating through the Florida Keys. Condor 103:11-20. View File
Smith, J. P. 2001. Fall 2000 raptor migration in the Goshute Mountains, Nevada. Great Basin Birds 4:40-43. View File
Smith, J. P., P. Grindrod, and S. W. Hoffman. 2001. Migration counts indicate Broad-winged Hawks are increasing in the West: evidence of breeding range expansion? Pages 93-106 in K. L. Bildstein and D. Klem, editors. Hawkwatching in the Americas. Hawk Migration Association of North America, North Wales, Pennsylvania, USA. View File
Smith J., and H. Gross. 2001. HawkWatch International: recap of fall 2000 migration Season [Western Regional News: Western Station Reports]. North American Bird Bander 26(1):35-36.
Smith, J. P., J. Simon, S. W. Hoffman, and C. Riley. 2001. New full-season autumn hawkwatches in coastal Texas. Pages 67-91 in K. L. Bildstein and D. Klem, editors. Hawkwatching in the Americas. Hawk Migration Association of North America, North Wales, Pennsylvania, USA. View File
Smith, J. P., M. Vekasy, and H. P. Gross. 2001. HawkWatch International expands western migratory raptor satellite telemetry project [Western Regional News: Western Station Reports]. North American Bird Bander 26(4):199-200.
1990 – 2000
DeLong, J. P. 2000. HawkWatch International raptor conservation program: issues and priorities. HawkWatch International, Salt Lake City, Utah. 81 pp. View File
Smith, J. P., and S. W. Hoffman. 2000. The value of extensive raptor migration monitoring in western North America. Pages 597-615 in R. D. Chancellor and B.-U. Meyburg, editors. Raptors at risk. World Working Group on Birds of Prey and Owls, Berlin, Germany, and Hancock House Publishers, British Columbia and Washington. View File
Olson, C. V. and D. P. Arsenault. 2000. Differential winter distribution of Rough-legged Hawks (Buteo lagopus) by sex in western North America. Journal of Raptor Research 34:157-166.
Ruelas Inzunza, E., S. W. Hoffman, L. J. Goodrich, and R. Tingay. 2000. Conservation strategies for the world’s largest known raptor migration flyway: Veracruz the River of Raptors. Pages 591-596 in R. D. Chancellor and B.-U. Meyburg, editors. Raptors at risk. World Working Group on Birds of Prey and Owls, Berlin, Germany, and Hancock House Publishers, British Columbia and Washington.
DeLong, J. P., and S. W. Hoffman. 1999. Differential autumn migration of Sharp-shinned and Cooper’s Hawks in western North America. Condor 101:674-678. View File
Smith, J. P. 2000. Fall 1999 raptor migration in the Goshute Mountains, Nevada. Great Basin Birds 3:28-31.
Smith, J. P., and S. W. Hoffman. 1999. Fall 1998 raptor migration in the Goshute Mountains, Nevada. Great Basin Birds 2:42-43.
Hoffman, S. W. 1998. A guide to watching raptors in Arizona. Pages 18-20 in R. L. Glinski, editor. The raptors of Arizona. The University of Arizona Press, Tucson.
Smith, J. P., and S. W. Hoffman. 1998. Fall 1997 raptor migration in the Goshute Mountains, Nevada. Great Basin Birds 1:11.
Eakle, W. L., E. L. Smith, S. W. Hoffman, D. W. Stahlecker, and R. B. Duncan. 1996. Results of a raptor survey in southwestern New Mexico. Journal of Raptor Research 30:183-188.
Omland, K. S., and S. W. Hoffman. 1996. Seasonal, diel, and spatial dispersion patterns of Golden Eagle autumn migration in southwestern Montana. Condor 98:633-636.
Gessaman, J. A. and S. W. Hoffman. 1990. Body temperatures of migrant accipiter hawks just after flight. Wilson Bulletin 102:133-137.
Hoffman, S. W., J. P. Smith, and J. A. Gessaman. 1990. Size of fall-migrant accipiters from the Goshute Mountains of Nevada. Journal of Field Ornithology 61: 201-211.
Smith, J. P., S. W. Hoffman, and J. A. Gessaman. 1990. Regional size differences among fall-migrant accipiters in North America. Journal of Field Ornithology 61: 192-200.
1990-Past
Bednarz, J. C. and S. W. Hoffman. 1988. Status of breeding Swainson’s hawks in southeastern New Mexico. Pages 253-259 in R. L. Glinski, B. G. Pendleton, M. B. Moss, M. N. LeFranc Jr., B. A. Millsap, and S. W. Hoffman, editors. Proceedings of the Southwest Raptor Management Symposium and Workshop, 21-24 May 1986, Univ. of Arizona, Tucson. National Wildlife Federation Scientific and Technical Series No.11. National Wildlife Federation, Washington, D.C.
Glinski, R. L., B. G. Pendleton, M. B. Moss, M. N. LeFranc Jr., B. A. Millsap, and S. W. Hoffman. 1988. Proceedings of the Southwest Raptor Management Symposium and Workshop, 21-24 May 1986, University of Arizona, Tucson. National Wildlife Federation Scientific and Technical Series No.11. National Wildlife Federation, Washington, D.C.
Smith, J. P. 1987. Field identification of North American accipiters. Utah Birds 3: 37-55.
Gessaman, J. A., J. A. Johnson, and S. W. Hoffman. 1986. Hematocrits and erythrocyte numbers for Cooper’s and Sharp-shinned Hawks. Condor 88:95-96.
Hoffman, S. W. 1985. Autumn Cooper’s Hawk migration through northern Utah and northeastern Nevada, 1977-1982. Pages 149-165 in M. Harwood, editor. Proceedings of Hawk Migration Conference IV, Rochester, NY, 24-27 March 1983. Hawk Migration Association of North America. View File
Hoffman, S. W. 1985. Raptor movements in inland western North America: a synthesis. Pages 325-338 in M. Harwood, editor. Proceedings of Hawk Migration Conference IV, Rochester, NY, 24-27 March 1983. Hawk Migration Association of North America. View File
Hoffman, S. W. and W. K. Potts. 1985. Fall migration of Golden Eagles in the Wellsville Mountains, northern Utah, 1976-1979. Pages 207-218 in M. Harwood, editor. Proceedings of Hawk Migration Conference IV, Rochester, NY, 24-27 March 1983. Hawk Migration Association of North America. View File
Hoffman, S. W. 1980. Western hawkwatching. Newsletter of the Hawk Migration Association of North America 6(1):1-4.
Migration Reports
HawkWatch International Migration Network View File
Fall
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Corpus Christi, Texas View File
Grand Canyon-Yaki Point, Arizona View File
Goshute Mountains, Nevada View File
Manzano Mountains, New Mexico View File
Spring
Gunsight Mountain, Alaska View File
Fall
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Corpus Christi, Texas View File
Grand Canyon-Yaki Point, Arizona View File
Goshute Mountains, Nevada View File
Manzano Mountains, New Mexico View File
Spring
Gunsight Mountain, Alaska View File
Fall
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Corpus Christi, Texas View File
Grand Canyon-Lipan Point, Arizona View File
Grand Canyon-Yaki Point, Arizona View File
Goshute Mountains, Nevada View File
Manzano Mountains, New Mexico View File
2012
Bonney Butte, Oregon View File View File File File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Goshute Mountains, Nevada View File
Manzano Mountains, New Mexico View File
2011
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Goshute Mountains, Nevada View File
Manzano Mountains, New Mexico View File
2010
Bonney Butte, Oregon View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Goshute Mountains, Nevada View File
Grand Canyon National Park, Arizona View File
Manzano Mountains, New Mexico View File
2009
Fall
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Corpus Christi, Texas View File
Goshute Mountains, Nevada View File
Manzano Mountains, New Mexico View File
Spring
Sandia Mountains, New Mexico View File
2008
Fall
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Corpus Christi, Texas View File
Goshute Mountains, Nevada View File
Grand Canyon National Park, Arizona View File
Manzano Mountains, New Mexico View File
Wellsville Mountains, Utah View File
Spring
Sandia Mountains, New Mexico View File
2007
Fall
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Corpus Christi, Texas View File
Goshute Mountains, Nevada View File
Grand Canyon National Park, Arizona View File
Manzano Mountains, New Mexico View File
Smith Point, Texas View File
Wellsville Mountains, Utah View File
Spring
Sandia Mountains, New Mexico View File
2006
Fall
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Corpus Christi, Texas View File
Goshute Mountains, Nevada View File
Grand Canyon National Park, Arizona View File
Manzano Mountains, New Mexico View File
Smith Point, Texas View File
Wellsville Mountains, Utah View File
Spring
Sandia Mountains, New Mexico View File
2005
Fall
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Corpus Christi, Texas View File
Goshute Mountains, Nevada View File
Grand Canyon National Park, Arizona View File
Manzano Mountains, New Mexico View File
Smith Point, Texas View File
Spring
Sandia Mountains, New Mexico, Spring 2005 raptor migration studies. View File
2004
Fall
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Goshute Mountains, Nevada View File
Grand Canyon National Park, Arizona View File
Manzano Mountains, New Mexico View File
Smith Point, Texas View File
Wellsville Mountains, Utah View File
Spring
Sandia Mountains, New Mexico View File
2003
Fall
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Corpus Christi, Texas View File
Goshute Mountains, Nevada View File
Grand Canyon National Park, Arizona View File
Manzano Mountains, New Mexico View File
Smith Point, Texas View File
Wellsville Mountains, Utah View File
Spring
Sandia Mountains, New Mexico View File
2002
Fall
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Commissary Ridge, Wyoming View File
Corpus Christi, Texas View File
Goshute Mountains, Nevada View File
Grand Canyon National Park, Arizona View File
Manzano Mountains, New Mexico View File
Smith Point, Texas View File
Spring
Jordanelle Reservoir, Utah View File
Rogers Pass, Montana View File
Sandia Mountains, New Mexico View File
2001
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Corpus Christi, Texas View File
Goshute Mountains, Nevada View File
Grand Canyon National Park, Arizona View File
Manzano Mountains, New Mexico View File
Smith Point, Texas View File
Wellsville Mountains, Utah View File
Exploratory Counts
Wyoming. View File
2000
Fall
Bonney Butte, Oregon View File
Bridger Mountains, Montana View File
Chelan Ridge, Washington View File
Goshute Mountains, Nevada View File
Grand Canyon National Park, Arizona View File
Manzano Mountains, New Mexico View File
Exploratory Counts
Wyoming and southwestern Montana
1999-Past
Bonney Butte, Oregon, Fall 1999 raptor migration studies View File
Bridger Mountains, Montana, Fall 1999 raptor migration studies View File
Chelan Ridge, Washington, Fall 1999 raptor migration studies View File
Goshute Mountains, Nevada, Fall 1999 raptor migration studies View File
Grand Canyon National Park, Arizona, Fall 1999 raptor migration studies View File
Diamond Head, Washington, Fall 1998 raptor migration studies
Dutchman Peak, Oregon, Fall 1998 raptor migration studies
Cape Flattery, Washington, Spring 1990-1997 raptor migration studies View File
Southern California, Fall 1997 Exploratory raptor migration survey
Western Colorado, Fall 1997 exploratory raptor migration survey
Baja California Sur, Mexico, Fall 1996 raptor migration count, bird, and herpetofauna survey
Delaware Mountains, Texas, Spring 1995 raptor migration survey
Delaware Mountains, Texas, Fall 1994 Raptor migration survey
Plumas National Forest, California, Fall 1993 raptor migration survey
Plumas National Forest, California, Spring 1993 raptor migration survey
Raptors Need You!
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