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Scientific Name
Empidonax difficilis occidentalis
Scientific Name w/ Auth.
Empidonax difficilis occidentalis Nelson, 1897
Park
Zion National Park (ZION)
Sensitive
No
Park Accepted
Accepted
Record Status
Approved
Park Preferred Common Names
Cordilleran Flycatcher
Park Synonyms
Empidonax occidentalis
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 |
| Subspecies | Empidonax difficilis occidentalis |
Occurrence
Present
Occurrence Notes
Summer resident and migrant.; Data Source: Wauer 1997, Bibkey #141334
Nativeness
Native
Nativeness Notes
Data Source: Sibley 2000, Bibkey #388608
Abundance
Common
Abundance Notes
Fairly common.; Data Source: Wauer 1997, Bibkey #141334
Seasonality Tags
-
Breeder
Wauer documents numerous breeding records from inside park boundaries.; Data Source: Wauer 1997, Bibkey #141334
Threatened Endangered Status
State Species of Concern statuses
Ozone Sensitive Status
NatureServe GRank
NatureServe SRank
Observations
0
References
Vouchers
0
External Links
0
Evidence counts shown include evidence for related synonyms.
Created By
eln/NCPN I&M
Created Date
7/27/2000 12:00:00 AM
Last Modified By
jrbrehm@nps.gov
Last Modified Date
9/25/2025 3:01:23 PM
Notes
Park Species Data Source: Wauer 1997, Bibkey #141334
Other Parks
Arches National Park (ARCH)
Black Canyon of the Gunnison National Park (BLCA)
Bryce Canyon National Park (BRCA)
Canyonlands National Park (CANY)
Capitol Reef National Park (CARE)
Cedar Breaks National Monument (CEBR)
Colorado National Monument (COLM)
Curecanti National Recreation Area (CURE)
Dinosaur National Monument (DINO)
Fossil Butte National Monument (FOBU)
Hovenweep National Monument (HOVE)
Natural Bridges National Monument (NABR)
Pipe Spring National Monument (PISP)
Timpanogos Cave National Monument (TICA)
Black Canyon of the Gunnison National Park (BLCA)
Bryce Canyon National Park (BRCA)
Canyonlands National Park (CANY)
Capitol Reef National Park (CARE)
Cedar Breaks National Monument (CEBR)
Colorado National Monument (COLM)
Curecanti National Recreation Area (CURE)
Dinosaur National Monument (DINO)
Fossil Butte National Monument (FOBU)
Hovenweep National Monument (HOVE)
Natural Bridges National Monument (NABR)
Pipe Spring National Monument (PISP)
Timpanogos Cave National Monument (TICA)
