PROJECT TITLE: Southwestern Willow Flycatcher surveys in Grand Canyon National Park
KEYWORDS: Neotropical Migrant; Endangered Species; Willow Flycatcher, Monitoring, Colorado
River, National Parks
AGENCY/UNIT: National Biological Service, Colorado Plateau Research Station, Northern
Arizona University, Flagstaff
STATUS: Ongoing
EXPECTED COMPLETION DATE: Final year of project initiated in 1992. Completion due Oct.
1995. Possible new funding for 1996.
DESCRIPTION: Monitor the number, distribution, habitat affiliations, and breeding ecology
of southwestern willow flycatchers along the Colorado River in the Grand Canyon. Determine
effects of cowbird parasitism.
COUNTIES: Coconino
LAND OWNERSHIP: National Park Service (Grand Canyon NP, Lake Mead NRA, Glen Canyon NRA),
Navajo Nation, Hualapai Nation
HABITAT(S): Riparian
PARTNERS: U.S. Fish & Wildlife Service, (Phoenix) AZ Game & Fish Dept., U.S.
Bureau of Reclamation Glen Canyon Environmental Studies
CONTACT PERSON(S): Mark Sogge, Colorado Plateau Research Station, P.O. Box 5614, Northern
Arizona University, Flagstaff, AZ 86011
PHONE: (602)556-7311
FAX: (602)556-7500
EMAIL: msogge@nbs.nau.edu PUBLICATIONS: Sogge, M.K. 1995. Present Status and Trends of the
Southwestern Willow Flycatcher in the Grand Canyon. Our Living Resources. National
Biological Service.
Sogge, M.K. and T.J. Tibbitts. 1994. Distribution and Status of the Southwestern Willow
Flycatcher along the Colorado River in the Grand Canyon - 1994. Summary Report. National
Biological Service Colorado Plateau Research Station/Northern Arizona University and U.S.
Fish and Wildlife Service. Phoenix. 37 pp.
Tibbitts, T.J., M.K. Sogge, and S.J. Sferra. 1994. A Survey Protocol for the Southwestern
Willow Flycatcher (Empidonax traillii extimus). National Park Service Technical Report
NPS/NAUCPRS/NRTR-94/04.
Sogge, M.K., T.J. Tibbitts, and S.J. Sferra. 1993. Status of the Southwestern Willow
Flycatcher along the Colorado River between Glen Canyon Dam and Lake Mead - 1993. Summary
Report. National Park Service Cooperative Park Studies Unit/Northern Arizona University
and U.S. Fish and Wildlife Service report. 69 pp.
Johnson, M.J. and M.K. Sogge. 1993. Southwestern Willow Flycatcher Surveys conducted along
the Colorado River Corridor. Colorado Plateau 2(4):1,8.
Sogge, M.K. and T. Tibbitts. 1992. Southwestern Willow Flycatcher
(Empidonax traillii extimus) Surveys along the Colorado River in Grand Canyon National
Park and Glen Canyon National Recreation Area - 1992 Summary Report. National Park Service
Cooperative Park Studies Unit/Northern Arizona University and U.S. Fish and Wildlife
Service report. 43pp.
PROJECT TITLE: Avian Community Inventory at Montezuma Castle National Monument
KEYWORDS: Riparian Birds, Neotropical Migrant, Inventory, National Parks
AGENCY/UNIT: National Biological Service, Colorado Plateau Research Station, NAU,
Flagstaff
STATUS: Ongoing
EXPECTED COMPLETION DATE: Project initiated in 1992; field work completed in 1994. Report
completion due Oct. 1995.
DESCRIPTION: Document the bird community and habitat relationships in the riparian and
upland habitats in Montezuma Castle National Monument. Test techniques suitable for
long-term monitoring
COUNTIES: Yavapai
LAND OWNERSHIP: National Park Service (Montezuma Castle National Monument)
HABITAT(S): Riparian, Mesquite, Sonoran Desert Upland
PARTNERS: National Park Service
CONTACT PERSON(S): Mark Sogge, Ecologist, Colorado Plateau Research Station, Box 5614,
Northen Arizona University, Flagstaff, AZ 86011
PHONE: (602)556-7311
FAX: (602)556-7500
EMAIL: msogge@nbs.nau.edu
PROJECT TITLE: Avian Community Monitoring in the Grand Canyon
KEYWORDS: Riparian Birds, Neotropical Migrant, Monitoring, Colorado River, National Parks
AGENCY/UNIT: National Biological Service, Colorado Plateau Research Station, Northern
Arizona University, Flagstaff
STATUS: Completed (now carried out by Grand Canyon National Park)
EXPECTED COMPLETION DATE:
DESCRIPTION: Document the bird community and habitat relationships in the
tamarisk-dominated riparian habitat along the Colorado River in the Grand Canyon. Test
techniques suitable for long-term monitoring. Determine residence status and movements
between sites.
COUNTIES: Coconino
LAND OWNERSHIP: National Park Service (Grand Canyon NP, Glen Canyon NRA)
HABITAT(S): Riparian
PARTNERS: Grand Canyon NP, Glen Canyon NRA, U.S. Bureau of Reclamation Glen Canyon
Environmental Studies
CONTACT PERSON(S): Mark Sogge, Ecologist, Colorado Plateau Research Station, Box 5614,
Northen Arizona University, Flagstaff, AZ 86011
PHONE: (602)556-7466
FAX: (602)556-7500
EMAIL: msogge@nbs.nau.edu
PUBLICATIONS: Sogge, M.K., D. Felley, P. Hodgetts and H. Yard. 1994. Grand Canyon Avian
Community Monitoring: 1993-1994 progress report. National Biological Service Colorado
Plateau Research Station/Northern Arizona University report. 33pp.
PROJECT TITLE: Avian Diet Analysis of Selected Insectivores in the Grand Canyon
KEYWORDS: Riparian Birds, Neotropical Migrant, Colorado River, National Parks, Diet
AGENCY/UNIT: National Biological Service, Colorado Plateau Research Station, Northern
Arizona University, Flagstaff
STATUS: Ongoing
EXPECTED COMPLETION DATE: Completion due Oct. 1995
DESCRIPTION: Determine the composition of aquatic-origin nad terrestrial insects in the
diet of five insectivorous bird species along the Colorado River in Grand Canyon.
Determine patterns ofinsect abundance and availability in habitat.
COUNTIES: Coconino
LAND OWNERSHIP: National Park Service (Grand Canyon NP, Glen Canyon NRA)
HABITAT(S): Riparian
PARTNERS: Grand Canyon NP, Glen Canyon NRA, U.S. Bureau of Reclamation Glen Canyon
Environmental Studies
CONTACT PERSON(S): Helen Yard or Mark Sogge, Colorado Plateau Research Station, Box 5614,
Northen Arizona University, Flagstaff, AZ 86011 PHONE: (602)556-7466
FAX: (602)556-7500
EMAIL: msogge@nbs.nau.edu
PUBLICATIONS: Sogge, M.K., D. Felley, P. Hodgetts and H. Yard. 1994. Grand Canyon Avian
Community Monitoring: 1993-1994 progress report. National Biological Service Colorado
Plateau Research Station/Northern Arizona University report. 33 pp.
PROJECT TITLE: Nest Physiology of the Willow Flycatcher
KEYWORDS: Neotropical Migrant, Willow Flycatcher, Endangered Species, Nests
AGENCY/UNIT: National Biological Service, Colorado Plateau Research Station, Northern
Arizona University, Flagstaff
STATUS: Ongoing
EXPECTED COMPLETION DATE: scheduled for completion in 1997
DESCRIPTION: Compare and analyze physical structure and nest-physiology characteristics of
different willow flycatcher populations. Determine if differences in nest structure or
physical characteristics (such as insulation, heat capacitance, etc.): (a) differ with
local climate conditions; or (b) prevent willow flycatchers from nesting in tamarisk
habitat in low elevations.
COUNTIES: Not applicable
LAND OWNERSHIP: Not applicable
HABITAT(S): Riparian
PARTNERS: (In collaboration with Mike Kern, College of Wooster, Wooster, OH)
CONTACT PERSON(S): Mark Sogge, Ecologist, Colorado Plateau Research Station, Box 5614,
Northen Arizona University, Flagstaff, AZ 86011
PHONE: (602)556-7466
FAX: (602)556-7500
EMAIL: msogge@nbs.nau.edu
PROJECT TITLE: Regional and Continental Variability in Vocalizations of the Willow
Flycatcher
KEYWORDS: Neotropical Migrant, Willow Flycatcher, Endangered Species, Song
AGENCY/UNIT: National Biological Service, Colorado Plateau Research Station, Northern
Arizona University, Flagstaff
STATUS: Ongoing
EXPECTED COMPLETION DATE: First year of two year project completed in 1996.
DESCRIPTION: Record, compare and analyze vocalizations of the various willow flycatcher
subspecies. Determine if song differences exist and can be used to develop a
vocalization-based model to identify willow flycatchers to subspecies.
COUNTIES: Not applicable
LAND OWNERSHIP: Not applicable
HABITAT(S): Riparian
PARTNERS: Arizona Game and Fish Department
CONTACT PERSON(S): Jim Sedgwick, Midcontinent Ecological Science Center, Fort Collins, CO
and Mark Sogge, Ecologist, Colorado Plateau Research Station, Box 5614, Northen Arizona
University, Flagstaff, AZ 86011
PHONE: (602)556-7466
FAX: (602)556-7500
EMAIL: msogge@nbs.nau.edu
PROJECT TITLE: Southwestern Willow Flycatcher Monitoring at Tuzigoot National Monument
KEYWORDS: Neotropical Migrant, National Parks, Southwestern Willow Flycatcher, Endangered
Species, Cowbird impacts
AGENCY/UNIT: National Biological Service, Colorado Plateau Research Station, Northern
Arizona University, Flagstaff
STATUS: Ongoing
EXPECTED COMPLETION DATE: Completion in 1996
DESCRIPTION: Investigate the breeding ecology and nesting success of the southwestern
willow flycatcher on lands administered by Tuzigoot National Monument. Determine the
effects of brown-headed cowbird nest parasitism on flycatcher breeding success.
Investigate possible human-related impacts associated with roads and human use of habitat
COUNTIES: Yavapai
LAND OWNERSHIP: National Park Service (Tuzigoot National Monument)
HABITAT(S): Riparian
PARTNERS: National Park Service
CONTACT PERSON(S): Mark Sogge, Ecologist, Colorado Plateau Research Station, Box 5614,
Northen Arizona University, Flagstaff, AZ 86011
PHONE: (602)556-7466
FAX: (602)556-7500
EMAIL: msogge@nbs.nau.edu
PROJECT TITLE: Breeding Ecology of Black-throated Sparrows, and the Effects of
Brown-headed Cowbird Parasitism
KEYWORDS: Neotropical Migrant, National Parks, Cowbird impacts
AGENCY/UNIT: National Biological Service, Colorado Plateau Research Station, Northern
Arizona University, Flagstaff
STATUS: Ongoing
EXPECTED COMPLETION DATE: 1995
DESCRIPTION: Investigate the breeding ecology and nesting success of black-throated
sparrows in upland habitats at Montezuma Castle National Monument. Determine the effects
of brown-headed cowbird nest parasitism of sparrow breeding success.
COUNTIES: Yavapai
LAND OWNERSHIP: National Park Service (Montezuma Castle National Monument)
HABITAT(S): Sonoran Desert Upland
PARTNERS: National Park Service
CONTACT PERSON(S): Matthew Johnson, Colorado Plateau Research Station, Box 5614, Northen
Arizona University, Flagstaff, AZ 86011
PHONE: (602)556-7466
FAX: (602)556-7500
PROJECT TITLE: Bald Eagle Monitoring in the Grand Canyon
KEYWORDS: Monitoring, Colorado River, National Parks, Raptor, Endangered Species, Bald
Eagle
AGENCY/UNIT: National Biological Service, Colorado Plateau Research Station, Northern
Arizona University, Flagstaff
STATUS: Completed
EXPECTED COMPLETION DATE: 1995
DESCRIPTION: Monitor the number and age class distribution of bald eagles wintered along
the Colorado River in the Grand Canyon. Emphasis on Nankoweap Creek confluence, where
eagles congregate to feed on rainbow trout spawning in creek. Also looking at foraging and
human disturbance.
COUNTIES: Coconino
LAND OWNERSHIP: National Park Service (Grand Canyon NP, Glen Canyon NRA), Navajo Nation
HABITAT(S): Riparian
PARTNERS: U.S. Fish and Wildlife Service (Phoenix), U.S. Bureau of Reclamation Glen Canyon
Environmental Studies
CONTACT PERSON(S): Mark Sogge, Charles van Riper III, Colorado Plateau Research Station,
Box 5614, Northen Arizona University, Flagstaff, AZ 86011
PHONE: (602)556-7466
FAX: (602)556-7500
EMAIL: mks@nauvax.ucc.nau.edu
Sogge, M.K. and T.J. Tibbitts. 1994. Wintering Bald Eagles in the Grand Canyon: 1993-1994.
Summary Report. National Biological Service Colorado Plateau Research Station/Northern
Arizona University and U.S. Fish and Wildlife Service, Phoenix. 31 pp.
van Riper, C.III, M.K. Sogge and T.J. Tibbitts. 1995. Status and Trends of Wintering Bald
Eagles Along the Colorado River Corridor on the Southern Colorado Plateau. Our Living
Resources. National Biological Service.
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