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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Empidonax traillii extimus
Southwestern Willow Flycatcher
Zion National Park
			Record Status: Approved
Occurrence:	Present
Nativeness:	Native
Abundance:	Rare

Scientific Name with Authority:		Empidonax traillii extimus A. R. Phillips, 1948
Park Preferred Common Name(s):		Southwestern Willow Flycatcher
Park Synonyms:		Empidonax traillii, Empidonax traillii brewsteri

Taxonomic Hierarchy:		Kingdom Animalia, Phylum Chordata, Subphylum Vertebrata, Order Passeriformes, Family Tyrannidae, Genus Empidonax, Species Empidonax traillii


Management Tags:
Management Priority


Seasonality Tags:
Migratory


Threatened/Endangered Status:		E
State Species of Concern Status:		UT: SGCN
Ozone-sensitive Status:
NatureServe Global Rank:		G5T2
NatureServe State Rank:		UT: S1
Evidence:		0 Observations, 0 Vouchers, 9 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Carlsbad Caverns National Park	Grand Canyon National Park
Tule Springs Fossil Beds National Monument


Last Modified Date:	10/3/2006

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 9/26/2025 9:27:16 AM

NatureServe Global Rank and State Rank

NatureServe. 2017. NatureServe Web Service. Arlington, VA. U.S.A. Available http://services.natureserve.org. Accessed: 12/4/2017. Updated quarterly.

This information is provided by NatureServe (www.natureserve.org) and its network of natural heritage member programs, a leading source of information about rare and endangered species, and threatened ecosystems.


		Species Profile		Page 1 of 1		9/26/2025 9:27:16 AM