Empidonax difficilis

Empidonax difficilis, Santa Rita Road east of Cayucos, California

Empidonax difficilis - Distribution map

   breeding

   year-round

   non-breeding

   migration

Taxonavigation

Taxonavigation: Tyrannida

Superregnum: Eukaryota Cladus: Unikonta Cladus: Opisthokonta Cladus: Holozoa Regnum: Animalia Subregnum: Eumetazoa Cladus: Bilateria Cladus: Nephrozoa Superphylum: Deuterostomia Phylum: Chordata Subphylum: Vertebrata Infraphylum: Gnathostomata Megaclassis: Osteichthyes Cladus: Sarcopterygii Cladus: Rhipidistia Cladus: Tetrapodomorpha Cladus: Eotetrapodiformes Cladus: Elpistostegalia Superclassis: Tetrapoda Cladus: Reptiliomorpha Cladus: Amniota Classis: Reptilia Cladus: Eureptilia Cladus: Romeriida Subclassis: Diapsida Cladus: Sauria Infraclassis: Archosauromorpha Cladus: Crurotarsi Divisio: Archosauria Cladus: Avemetatarsalia Cladus: Ornithodira Subtaxon: Dinosauromorpha Cladus: Dinosauriformes Cladus: Dracohors Cladus: Dinosauria Ordo: Saurischia Cladus: Eusaurischia Subordo: Theropoda Cladus: Neotheropoda Cladus: Averostra Cladus: Tetanurae Cladus: Avetheropoda Cladus: Coelurosauria Cladus: Tyrannoraptora Cladus: Maniraptoromorpha Cladus: Maniraptoriformes Cladus: Maniraptora Cladus: Pennaraptora Cladus: Paraves Cladus: Eumaniraptora Cladus: Avialae Infraclassis: Aves Cladus: Avebrevicauda Cladus: Pygostylia Cladus: Ornithothoraces Cladus: Ornithuromorpha Cladus: Carinatae Parvclassis: Neornithes Cohors: Neognathae Cladus: Neoaves Cladus: Telluraves Cladus: Australaves Ordo: Passeriformes Subordo: Tyranni Infraordo: Tyrannides Parvordo: Tyrannida

Familia: Tyrannidae
Genus: Empidonax
Species: Empidonax difficilis
Subspecies:

Group: E. d. difficilis – E. d. cineritius – E. d. insulicola

Synonyms: E. d. perplexus included in nominal

Group: E. d. occidentalis – E. d. bateli – E. d. hellmayri

Synonyms: E. d. annectens included in nominal; E. d. culiacani – E. d. immemoratus – E. d. infelix included in bateli; E. d. immodulatus included in hellmayri.

Name

Empidonax difficilis S.F. Baird, 1858

• Type locality: west coast of United States, Fort Steilacoom, Shoalwater Bay, Washington, Fort Tejon, California; restricted to Fort Steilacoom, Washington.

References

Primary references

• Baird, S.F. 1858. Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean. Vol. 9: i–lvi, 1–1005. Washington. DOI: 10.5962/bhl.title.11139 BHL. Part II, with the cooperation of Cassin, J. & Lawrence, G.N. Birds. BHL Reference page.  p. 198

Additional references

• Hopping, W.A. 2022. Unraveling Western Flycatchers: A case against the split. North American Birds 73: 8–17. ResearchGate Reference page. 

Vernacular names

English: Pacific-slope Flycatcher
español: Mosquero del Pacífico
suomi: Metsäsieppari

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