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: ParaHoxozoa Cladus: Bilateria Cladus: Nephrozoa Superphylum: Deuterostomia Phylum: Chordata Cladus: Olfactores Subphylum: Vertebrata Infraphylum: Gnathostomata Megaclassis: Osteichthyes Cladus: Sarcopterygii Cladus: Rhipidistia Cladus: Tetrapodomorpha Cladus: Eotetrapodiformes Cladus: Elpistostegalia Superclassis: Tetrapoda Cladus: Reptiliomorpha Cladus: Amniota Cladus: Sauropsida Classis: Reptilia Cladus: Eureptilia Cladus: Romeriida Cladus: Diapsida Cladus: Neodiapsida Cladus: Sauria Cladus: Archelosauria Cladus: Archosauromorpha Cladus: Crocopoda Cladus: Archosauriformes Cladus: Eucrocopoda Cladus: Archosauria Cladus: Avemetatarsalia Cladus: Ornithodira Cladus: Dinosauromorpha Cladus: Dinosauriformes Cladus: Dracohors Cladus: Dinosauria Cladus: Saurischia Cladus: 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 Subclassis: Aves Cladus: Avebrevicauda Cladus: Pygostylia Cladus: Ornithothoraces Cladus: Ornithuromorpha Cladus: Carinatae Cladus: Neornithes Infraclassis: Neognathae Cladus: Neoaves Cladus: Telluraves Cladus: Australaves Ordo: Passeriformes Subordo: Tyranni Infraordo: Tyrannides Parvordo: Tyrannida

Familia: Tyrannidae
Subfamilia: Fluvicolinae
Tribus: Contopini
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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