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Scientific Name
Empidonax difficilis
Scientific Name w/ Auth.
Empidonax difficilis S. F. Baird, 1858
Park
Yosemite National Park (YOSE)
Sensitive
No
Park Accepted
Accepted
Record Status
Approved
Park Preferred Common Names
Pacific-slope flycatcher
Park Synonyms
Empidonax difficilis difficilis
Taxonomic Hierarchy
| Kingdom | Animalia |
| Subkingdom | Bilateria |
| Infrakingdom | Deuterostomia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Infraphylum | Gnathostomata |
| Superclass | Tetrapoda |
| Class | Aves |
| Order | Passeriformes |
| Family | Tyrannidae |
| Genus | Empidonax |
| Species | Empidonax difficilis |
Occurrence
Present
Occurrence Notes
Data Source: Gaines, D., 1992. Birds of Yosemite and the East Slope. Artemisia Press, Lee Vining, California. 352 pp.; Siegel, R.B. and D.F. DeSante. Avian Inventory of Yosemite National Park (1998-2000). Revised Draft Final Report. The Institute for Bird Populations, Point Reyes Station, California.
Nativeness
Native
Nativeness Notes
Data Source: Gaines, D., 1992. Birds of Yosemite and the East Slope. Artemisia Press, Lee Vining, California. 352 pp.
Abundance
Uncommon
Abundance Notes
Locally uncommon summer resident below 5000', rare summer resident to 6500' and rare fall transient to treeline; Data Source: Gaines, D., 1992. Birds of Yosemite and the East Slope. Artemisia Press, Lee Vining, California. 352 pp.; Siegel, R.B. and D.F. DeSante. Avian Inventory of Yosemite National Park (1998-2000). Revised Draft Final Report. The Institute for Bird Populations, Point Reyes Station, California.; DeSante, D.F., Pyle, P. and D.R. Kaschube, 2005. The Monitoring Avian Productivity and Survivorship (MAPS) Program in Yosemite National Park. Institute for Bird Populations, Point Reyes, California. 153 pp.
Seasonality Tags
-
Breeder
Locally uncommon summer resident below 5000', rare summer resident to 6500' and rare fall transient to treeline; Data Source: Gaines, D., 1992. Birds of Yosemite and the East Slope. Artemisia Press, Lee Vining, California. 352 pp.; DeSante, D.F., Pyle, P. and D.R. Kaschube, 2005. The Monitoring Avian Productivity and Survivorship (MAPS) Program in Yosemite National Park. Institute for Bird Populations, Point Reyes, California. 153 pp.
Threatened Endangered Status
State Species of Concern statuses
Ozone Sensitive Status
NatureServe GRank
NatureServe SRank
Observations
105
References
Vouchers
1
External Links
0
Evidence counts shown include evidence for related synonyms.
Created By
Steve Thompson
Created Date
8/1/2005 12:00:00 AM
Last Modified By
lchow@nps.gov
Last Modified Date
6/23/2015 4:53:16 PM
Notes
Park Species Data Source: YOSEWildlifeObs.mdb; YOSEIBPBirdInventory2000.mdb; YOSEMAPS2004.mdb
Other Parks
Bighorn Canyon National Recreation Area (BICA)
Cabrillo National Monument (CABR)
Carlsbad Caverns National Park (CAVE)
Channel Islands National Park (CHIS)
Coronado National Memorial (CORO)
Crater Lake National Park (CRLA)
Manzanar National Historic Site (MANZ)
Death Valley National Park (DEVA)
Guadalupe Mountains National Park (GUMO)
Glacier Bay National Park and Preserve (GLBA)
Mojave National Preserve (MOJA)
Fort Bowie National Historic Site (FOBO)
Lassen Volcanic National Park (LAVO)
Ebey's Landing National Historical Reserve (EBLA)
Fort Vancouver National Historic Site (FOVA)
Eugene O'Neill National Historic Site (EUON)
Golden Gate National Recreation Area (GOGA)
Grand Canyon National Park (GRCA)
Joshua Tree National Park (JOTR)
Lake Mead National Recreation Area (LAKE)
Klondike Gold Rush National Historical Park (KLGO)
Glacier National Park (GLAC)
Montezuma Castle National Monument (MOCA)
Lewis and Clark National Historical Park (LEWI)
John Muir National Historic Site (JOMU)
Lake Roosevelt National Recreation Area (LARO)
Dinosaur National Monument (DINO)
Redwood National Park (REDW)
Tumacacori National Historical Park (TUMA)
Point Reyes National Seashore (PORE)
Muir Woods National Monument (MUWO)
Sequoia and Kings Canyon National Parks (SEKI)
Olympic National Park (OLYM)
Tuzigoot National Monument (TUZI)
San Juan Island National Historical Park (SAJH)
Oregon Caves National Monument (ORCA)
North Cascades National Park (NOCA)
Santa Monica Mountains National Recreation Area (SAMO)
Tonto National Monument (TONT)
Whitman Mission National Historic Site (WHMI)
Presidio of San Francisco (PRSF)
Organ Pipe Cactus National Monument (ORPI)
Whiskeytown National Recreation Area (WHIS)
Pinnacles National Park (PINN)
Saguaro National Park (SAGU)
Sitka National Historical Park (SITK)
Valles Caldera National Preserve (VALL)
Cabrillo National Monument (CABR)
Carlsbad Caverns National Park (CAVE)
Channel Islands National Park (CHIS)
Coronado National Memorial (CORO)
Crater Lake National Park (CRLA)
Manzanar National Historic Site (MANZ)
Death Valley National Park (DEVA)
Guadalupe Mountains National Park (GUMO)
Glacier Bay National Park and Preserve (GLBA)
Mojave National Preserve (MOJA)
Fort Bowie National Historic Site (FOBO)
Lassen Volcanic National Park (LAVO)
Ebey's Landing National Historical Reserve (EBLA)
Fort Vancouver National Historic Site (FOVA)
Eugene O'Neill National Historic Site (EUON)
Golden Gate National Recreation Area (GOGA)
Grand Canyon National Park (GRCA)
Joshua Tree National Park (JOTR)
Lake Mead National Recreation Area (LAKE)
Klondike Gold Rush National Historical Park (KLGO)
Glacier National Park (GLAC)
Montezuma Castle National Monument (MOCA)
Lewis and Clark National Historical Park (LEWI)
John Muir National Historic Site (JOMU)
Lake Roosevelt National Recreation Area (LARO)
Dinosaur National Monument (DINO)
Redwood National Park (REDW)
Tumacacori National Historical Park (TUMA)
Point Reyes National Seashore (PORE)
Muir Woods National Monument (MUWO)
Sequoia and Kings Canyon National Parks (SEKI)
Olympic National Park (OLYM)
Tuzigoot National Monument (TUZI)
San Juan Island National Historical Park (SAJH)
Oregon Caves National Monument (ORCA)
North Cascades National Park (NOCA)
Santa Monica Mountains National Recreation Area (SAMO)
Tonto National Monument (TONT)
Whitman Mission National Historic Site (WHMI)
Presidio of San Francisco (PRSF)
Organ Pipe Cactus National Monument (ORPI)
Whiskeytown National Recreation Area (WHIS)
Pinnacles National Park (PINN)
Saguaro National Park (SAGU)
Sitka National Historical Park (SITK)
Valles Caldera National Preserve (VALL)
