Empidonax difficilis occidentalis

Empidonax difficilis occidentalis, Santa Fe, New Mexico, U.S.A.

Empidonax difficilis occidentalis group - Distribution map

   breeding

   year-round

   non-breeding

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 Cladus: 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: Empidonax difficilis occidentalis

Name

Empidonax difficilis occidentalis Nelson, 1897

• Holotype: USNM 154599 ♂ 18 Mar 1895
• Type locality: Pluma, Oaxaca, Mexico.

Synonymy

• Empidonax bairdi occidentalis (protonym)
• Empidonax occidentalis Nelson, 1897

References

Primary references

• Nelson, E.W. 1897. Preliminary Descriptions of New Birds from Mexico and Guatemala in the Collection of the United States Department of Agriculture. The Auk 14: 42–76 BHL DOI: 10.2307/4068520Reference page.  p. 53

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: Cordilleran Flycatcher
español: Mosquero cordillerano

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