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Peregrine Falcons

Overview

Project Leader: Melanie Flamme

Park Units:

Resource Brief

The number of occupied territories within the study area, which is located within Yukon-Charley Rivers National Preserve, has shown a steady increase since the species neared extinction in the early 1970s because of nest failure caused by DDT contamination. In 2007, 50 occupied territories were observed, which is nearly a 5-fold increase since 1975.Reproductive success has improved during the past 3 decades. The number of nestlings, though variable among years, has increased from 17 in 1975 to 82 in 2007. Recent evidence suggests that American Peregrine Falcons are still threatened by environmental contaminants, though. Analyses of Peregrine eggs from the upper Yukon River suggest that mercury levels are increasing. Mercury is a persistent compound which bioaccumulates at high trophic levels and causes toxic effects (similar to DDT). The amount of mercury being found in Yukon area eggs is currently at levels that may affect reproduction. High levels of mercury are made biologically available through industrial processes such as mining and waste incineration, and will likely increase with global industrialization. Additionally, DDT and other pesticides are still being used on Peregrine wintering grounds, which may cause continued risk to the population.

Contacts

Name Role
Melanie Flamme Lead
Robert Ambrose Contributor
Chris Florian Contributor
Carol McIntyre Contributor
National Park Service Central Alaska Network Inventory and Monitoring Program Sponsor


Products

Type Holdings Title IRMA
Generic Document 0 2008. 2008 American Peregrine Falcon (Falcon peregrinus anatum) Monitoring along the Upper Yukon River in Yukon-Charley Rivers National Preserve, Central Alaska Network. Generic Document-2166038. (No holdings or the holding is external. Consult the IRMA reference)
Journal Article 1 Download American-Peregrine-Falcons-MacCluskie.pdf MacCluskie M and Others. 2010. The American Peregrine Falcons of Yukon-Charley Rivers National Preserve, Alaska. Alaska Park Science. 9(1)Journal Article-2221094.
Published Report 1 Download NPS_1982_YUCH_PeregrineFalconSurveyFieldNotes_3046.PDF Ulvi S. 1982. 1982 peregrine falcon survey : field notes. Yukon-Charley Rivers National Preserve. Eagle, AK. Published Report-3046.
Published Report 1 Download CuratoloJ_1978_YUCH_FinalReportofFalconProgram-CircleandAlaskaYukonBorder_46141.PDF Curatolo J and Ambrose RE. 1978. A Final report of the peregrine falcon surveillance program between Circle, Alaska and the Alaska-Yukon border, 1978. US Fish and Wildlife Service. Fairbanks, AK. Published Report-46141.
Published Report 1 Download National Technical Report good-PEFA2007.pdf Flamme MJ and Others. 2008. American Peregrine Falcon (Falco peregrinus anatum) Monitoring along the Upper Yukon River in Yukon-Charley Rivers National Preserve, Central Alaska Network. Natural Resource Technical Report. NPS/CAKN/NRTR—2008/079. National Park Service, Natural Resource Program Center. Fort Collins, Colorado. Published Report-2166491.
Published Report 1 Download AmbroseS_1983_YUCH_AmericanPeregrineFalconStudiesonUpperYukon_177544.PDF Ambrose R and Others. 1983. American Peregrine Falcon (Falco peregrinus anatum) Studies on the Upper Yukon River. US Fish and Wildlife Service. Juneau, AK. Published Report-177544.
Published Report 0 Ambrose RE. 1997. American Peregrine Falcons Along the Upper Yukon River, Alaska, 1997. U. S. Fish and Wildlife Service and US Air Force 354th Fighter Wing Eleventh Air Force. Eilson AFB, AK. Published Report-177937. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 0 Ambrose S. 1996. American Peregrine Falcons along the Upper Yukon River, Alaska. Fairbanks, AK. Published Report-551367. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 1 Download YUCH_Peregrine_2008_ann_rep.pdf Ambrose RE and Others. 2008. American peregrine falcon (Falco peregrinus anatum) monitoring along the Upper Yukon River in Yukon-Charley Rivers National Preserve, Central Alaska Network: 2008 report. Natural Resource Technical Report. NPS/CAKN/NRTR—2008/138. National Park Service, Natural Resource Program Center. Fort Collins, Colorado. Published Report-2166475.
Published Report 1 Download AmbroseS_1995_YUCH_AmericanPeregrineFalconsAlongUpperYukonRiver_143198.PDF Ambrose S. 1995. American peregrine falcons along the upper Yukon River, Alaska. US Fish and Wildlife Service. Published Report-143198.
Published Report 1 Download McIntyreC_1995_YUCH_SurveyforPeregrineFalconsAlongCharleyRiver_143208.PDF Mcintyre CL and Hander RF. 1995. Charley River Peregrine Falcon (Falco peregrinus) Survey, 1995. Yukon-Charley Rivers National Park. Fairbanks, AK. Published Report-177928.
Published Report 1 Download JolyK_1995_YUCH_ImpactsofBeaveronNaturalReclamationofPlacerMineTailings_177930_551338_551288.PDF Mcintyre CL. 1996. Charley River Peregrine Falcon (Falco peregrinus) Survey, 1996. National Park Service Yukon-Charley Rivers National Preserve. Fairbanks, AK. Published Report-177936.
Published Report 0 Mcintyre C and Hander R. 1995. Charley River peregrine falcon occupancy survey, 1995. Yukon-Charley National Preserve. Published Report-143210. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 1 Download McIntyreC_1996_YUCH_CharleyRiverPeregrineFalconSurvey_143209_551403_177936_583184.PDF Mcintyre C. 1996. Charley River peregrine falcon occupancy survey, 1996. Yukon-Charley National Preserve. Published Report-143209.
Published Report 1 Download McIntyreC_1994_YUCH_CharleyRiverPeregrineFalconOccupancySurvey_143214_143210.PDF Mcintyre C. 1994. Charley River peregrine falcon occupancy survey, results of field survey, 1-7 June 1994. Yukon - Charley Rivers National Preserve. Published Report-143214.
Published Report 1 Download AmbroseS_1979_YUCH_CombinedReportsofPerefrineFalconSurvProgram_25447.PDF Ambrose RE. 1979. Combined reports of the Yukon river peregrine falcon surveillance program, 1979. US Fish and Wildlife Service. Fairbanks, AK. Published Report-25447.
Published Report 0 US National Park Service. Floating the Charley River to conduct Peregrine Falcon surveys: Helpful hints and general descriptions of known Peregrine Falcon nest sites. Published Report-551404. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 1 Download KnucklesP_1994_YUCH_FortymileRiverTripReport_50415.PDF Knuckles P. 1994. Fortymile River trip report : south-facing bluff plant community inventory peregrine falcon breeding observations. Resource Management Report Series. Yukon-Charley Rivers National Preserve. Eagle, AK. Published Report-50415.
Published Report 0 Ulvi S. 1991. Historic raptor nest sites on the Charley River. Published Report-551405. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 1 Download McIntyreC_1985_YUCH_KandikRiverPeregrineSurveyandBanding_68271.PDF McIntyre C and Ratcliffe B. 1985. Kandik River peregrine survey and banding, July 12-17, 1985. Research and Resource Management Report. Yukon-Charley Rivers National Preserve. Eagle, AK. Published Report-68271.
Published Report 0 Maxwell M. 1998. Kanuti Canyon raptor survey. US Fish and Wildlife Service, Kanuti National Wildlife Refuge. Fairbanks, AK. Published Report-583192. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 1 Download FoxK_1994_YUCH_LegacyProject1055MonitoringPeregrineFalconsandTheirNeoTropicalPrey_143216.PDF Fox K and App J. 1994. Monitor peregrine falcons and their Neotropical prey. Research and resource management Series. 94-02. National Park Service. Eagle, AK. Published Report-143216.
Published Report 0 US National Park Service. 1989. Organochlorines and trace metals in eggs of Arctic and American Peregrine Falcons (falco peregrinus tundrius and FP anatum) in Alaska and their current impact on productivity. National Park Service. Fairbanks, AK. Published Report-551407. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 1 Download AmbroseS_1990_YUCH_PeregrineFalconResearch_177828_551325.PDF Ambrose S and Ulvi S. 1990. Peregrine Falcon Research in the Yukon-Charley Rivers National Preserve, Alaska. Yukon-Charley Rivers National Preserve. Fairbanks, AK. Published Report-177828.
Published Report 0 McIntyre C. 1991. Peregrine Falcon survey photos. Fairbanks, AK. Published Report-551410. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 0 Mcintyre CL and Others. 1993. Peregrine Falcon surveys in the Yukon-Tanana Uplands: Upper Salcha, Chena, Goodpaster, Healy, and Fortymile Rivers, and upper Birch Creek, 1993. National Park Service US Fish and Wildlife Service. Anchorage, AK. Published Report-583236. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 0 Ambrose RE. 1984. Peregrine falcon and bald eagle studies along the upper Tanana and upper Yukon Rivers, Alaska, 1984. US Fish and Wildlife Service. Fairbanks, AK. Published Report-90650. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 1 Download UlviS_1988_YUCH_PeregrineFalconBandingCharleyRiver_90657_143190.PDF Ulvi S and Knuckles P. 1988. Peregrine falcon banding Charley River, July 7-12 1988. Research and Resource Management Report. Research and resource management Series 88-01. Yukon-Charley Rivers National Preserve. Eagle, AK. Published Report-90657.
Published Report 1 Download UlviS_1987_YUCH_PeregrineFalconBandingCharleyandYukonRivers_90655_90656.PDF Ulvi S. 1987. Peregrine falcon banding Charley and Yukon rivers, 1987. Research and Resource Management Report. Yukon Charley Rivers National Preserve. Eagle, AK. Published Report-90655.
Published Report 1 Download BrittenM_1986_YUCH_PeregrineFalconBandingCharleyRiver_143191.PDF Britten M and Others. 1986. Peregrine falcon banding on the Charley River. Research and resource management Series. 86-05. Yukon-Charley Rivers National Preserve. Eagle, AK. Published Report-143191.
Published Report 1 Download UlviS_1989_YUCH_PeregrineFalconBandingonCharleyRiverandObservationonKandik_90661_90660.PDF Ulvi S. 1989. Peregrine falcon banding on the Charley River and observations on the Kandik River, 1989. Research and Resource Management Report. Yukon Charley Rivers National Preserve. Eagle, AK. Published Report-90661.
Published Report 2 Click to view holdings Ulvi S. 1990. Peregrine falcon banding on the Charley River, July 1990. Research and Resource Management Report. Yukon-Charlie Rivers National Preserve. Eagle, AK. Published Report-90662. (Multiple holdings)
Published Report 0 Ulvi S. 1985. Peregrine falcon banding surveys in and adjacent to Yukon-Charley Rivers National Preserve, 1985. Research and Resource Management Report. YUCH-85-01. Yukon-Charley Rivers National Preserve. Eagle, AK. Published Report-90663. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 1 Download OlexaE_1992_YUCH_PeregrineFalconSurveyCharleyRiver_90841_177577.PDF Olexa E and Knuckles P. 1992. Peregrine falcon survey Charley River, June 27-July 2 1992. Research and Resource Management Report. YUCH-92-01. Yukon-Charley Rivers National Preserve. Eagle, AK. Published Report-90841.
Published Report 1 Download AmbroseS_1986_YUCH_PeregrineFalconSurveysinInteriorandNorthernAK_90856_143194.PDF Ambrose RE and Hunter RE. 1986. Peregrine falcon surveys in interior and northern Alaska, 1986, and comparison with recovery plan criteria. US Fish and Wildlife Service. Fairbanks, AK. Published Report-90856.
Published Report 1 Download AmbroseS_1987_YUCH_PeregrineFalconSurveysinInteriorandNorthernAK_90857_143195.PDF Ambrose RE. 1987. Peregrine falcon surveys in interior and northern Alaska, 1987 and comparison with recovery plan criteria. US Fish and Wildlife Service. Fairbanks, AK. Published Report-90857.
Published Report 0 Ambrose RE. 1988. Peregrine falcon surveys in interior and northern Alaska, 1988. US Fish and Wildlife Service. Fairbanks, AK. Published Report-90858. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 2 Click to view holdings Ambrose R. 1989. Peregrine falcon surveys in interior and northern Alaska, 1989. US Fish and Wildlife Service. Fairbanks, AK. Published Report-90859. (Multiple holdings)
Published Report 0 Hunter RE and Ambrose S. 1985. Prey selection by American Peregrine Falcons during the nestling stage. Published Report-551378. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 0 McIntyre C. 1993. Raptor research projects : Denali, Yukon-Charley, USFWS Peregrine Project, and Bering Land Bridge : summer progress report June-August 1993. National Park Service Alaska Regional Office. Anchorage, AK. Published Report-100800. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 0 Mcintyre CL. 1992. Raptor research projects : progress report : April - May 1992. US National Park Service, Alaska Regional Office. Anchorage, AK. Published Report-100801. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 1 Download AmbroseS_1977_YUCH_ReportonPeregrineFalconSurveillanceProgram_104510.PDF Ambrose RE. 1977. Report on peregrine falcon surveillance program on the upper Yukon, 1977. US Fish and Wildlife Service. Fairbanks, AK. Published Report-104510.
Published Report 0 Mcintyre C. 1996. Summary of occupation and production of Peregrine Falcons along the Charley River, Alaska, 1980-1995. Gates of the Arctic National Park and Preserve. Fairbanks, AK. Published Report-583184. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 0 Timm H and Mcintyre C. 2000. Summary of survey activity, occupancy, and production at known peregrine falcon nesting sites, Charley River, Alaska, 1980-1995. US Fish and Wildlife Service; National Park Service. Tok, AK. Published Report-584224. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 1 Download McIntyreC_1991_YUCH_SupplementalPeregrineFalcon_143188.PDF Mcintyre C. 1991. Supplemental peregrine falcon, Falco peregrinus, surveys near Yukon-Charley Rivers National Preserve. Research and resource management Series. 91-06. Published Report-143188.
Published Report 0 Mcintyre CL. 1992. Supplemental peregrine falcon, falco peregrinus, surveys in and near Yukon-Charley Rivers National Preserve March 1992. Research and Resource Management Report. Yukon-Charlie Rivers National Preserve. Eagle, AK. Published Report-122457. (No holdings or the holding is external. Consult the IRMA reference)
Published Report 1 Download AmbroseS_1998_YUCH_SurveysforAmericanPeregrineFalconsinECAK_551328.pdf Ambrose S. 1998. Survey for American Peregrine Falcons in east-central Alaska. Published Report-551328.
Published Report 1 Download McIntyreC_1995_YUCH_SurveyforPeregrineFalconsAlongCharleyRiver_143208.PDF Mcintyre C. 1995. Surveys for peregrine falcons along the Charley River, Yukon-Charley National Preserve, 1980-1995. Published Report-143208.
Published Report 1 Download R E Ambrose;K E Riddle_1982_YUCH_StatusofPeregrineFalconsAlongUpperYukonRiverandBloodSamplinginInteriorAK_143192.PDF Ambrose RE and Riddle KE. 1982. The status of peregrine falcons along the upper Yukon River, Alaska, and blood sampling of peregrine falcons in interior Alaska for toxicological analysis, 1981. US Fish and Wildlife Service. Fairbanks, AK. Published Report-143192.
Published Report 1 Download NPS_1988_YUCH_UpperYukonRiverSurveyResultsonEndangeredSpecies_177790.PDF US National Park Service. 1988. Upper Yukon River : 1988 survey results on endangered species (peregrine falcons). National Park Service. Fairbanks, AK. Published Report-177790.
Published Report 0 Ambrose RE and Ritchie RJ. 1975. Upper Yukon River Peregrine surveys, 1973 and 1975. Fairbanks, AK. Published Report-583916. (No holdings or the holding is external. Consult the IRMA reference)
Resource Brief 1 Download RS_peregYUCH_apr08.pdf National Park Service Central Alaska Inventory and Monitoring Network. 2008. PEREGRINE NUMBERS HAVE GROWN, BUT ENVIRONMENTAL THREATS REMAIN: PEREGRINE MONITORING IN THE CENTRAL ALASKA NETWORK: YUKON-CHARLEY RIVERS. National Park Service Central Alaska Inventory and Monitoring Network. Resource Brief-2221093.
Unpublished Report 0 Ambrose S. 1998. 1998 Peregrine falcon survey, banding, and contaminant monitoring. Unpublished Report-622341. (No holdings or the holding is external. Consult the IRMA reference)
Unpublished Report 0 Ambrose S and Florian C. 2011. AMERICAN PEREGRINE FALCON MONITORING ALONG THE UPPER YUKON RIVER, ALASKA, 2011. Sandhill Company. Castle Valley, UT. Unpublished Report-2218301. (No holdings or the holding is external. Consult the IRMA reference)
Unpublished Report 1 Download 2005_pefa_upper_yukon_river.pdf Guldager N and Others. 2005. American Peregrine Falcon Monitoring Along the Upper Yukon River, Yukon-Charley Rivers, Alaska, 2005. Fairbanks, AK. Unpublished Report-2205128.
Unpublished Report 1 Download American_Peregrine_Falcon_Monitoring_along_the_Upper_Yukon_River-2006.pdf Guldager N and Others. American Peregrine Falcon Monitoring along the Upper Yukon River, Alaska, 2006. Unpublished Report-2221092.
Unpublished Report 1 Download AmbroseS_1998_YUCH_AmericanPeregrineFalconsAlongUpperYukonRiver_143204.PDF Ambrose RE. 1998. American peregrine falcons along the upper Yukon River, Alaska, 1998. Unpublished Report-143204.
Unpublished Report 1 Download FadelyJ_1993_YUCH_CharleyRiverSurveySummary_177840.PDF Fadley J and McIntyre C. 1993. Charley River Survey Summary. Unpublished Report-177840.
Unpublished Report 0 Swem T and Ambrose S. 1994. Current impacts of contaminants on reproduction of Peregrine Falcons in Alaska. Unpublished Report-622331. (No holdings or the holding is external. Consult the IRMA reference)
Unpublished Report 0 Ambrose S. 1995. Recovery of American peregrine falcons along the upper Yukon river, Alaska, 1973-1995. Unpublished Report-622336. (No holdings or the holding is external. Consult the IRMA reference)
Unpublished Report 0 Ambrose RE. 1980. Results of the 1980 peregrine falcon surveys on the upper Yukon, Charley and Colville rivers, Alaska. Anchorage, AK. Unpublished Report-564212. (No holdings or the holding is external. Consult the IRMA reference)
Unpublished Report 0 Amaral M. 1981. The occurrence of peregrine falcons (Falco peregrinus anatum) and other raptors on the Charley River. US Fish and Wildlife Service. Office of Endangered Species. Anchorage, AK. Unpublished Report-564109. (No holdings or the holding is external. Consult the IRMA reference)


Key words: Peregrine Falcon, Falco Peregrinus, Monitoring, Alaska, Yukon-Charley Rivers, National Park, territories, Reproductive Success, Contaminants, Egg, Mercury, Population

Subject Category:

  • Ecological Framework: Biological Integrity | Focal Species or Communities | Birds

This project is a part of a Program: Central Alaska Network, Inventory and Monitoring Program, National Park Service (CAKN). Program-2210836.

Last Updated: March 31, 2015 Contact Webmaster