Citation:
Baird, SF 1858
Reference:
Rep. Explor. Surv. Railr. Mississ. Pacif.
9 p.198
Protonym:
Empidonax difficilis
Type locality:
west coast of United States, Fort Steilacoom, Shoalwater Bay, Washington, Fort Tejon, California; restricted to Fort Steilacoom, Washington by Brodkorb, 1949, Condor, 51, p. 39.
Link:
https://biodiversitylibrary.org/page/11689398
Avibase ID:
B12B88163F6F5435
Avibase ID:
avibase-B12B8816
Short link:
https://avibase.ca/B12B8816
Taxonomic Serial Number:
TSN: 178348
Geographic range:
Authorities recognizing this taxonomic concept:
American Ornithologists' Union 3rd edition (1910): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 3rd edition (incl. 16th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 3rd edition (incl. 17th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 3rd edition (incl. 18th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (1931): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (incl. 19th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (incl. 20th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (incl. 21st suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (incl. 22nd suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (incl. 23rd suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (incl. 24th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (incl. 25th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (incl. 26th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (incl. 27th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (incl. 28th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (incl. 29th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (incl. 30th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 4th edition (incl. 31st suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 5th edition (1957): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 5th edition (incl. 32nd suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 5th edition (incl. 33rd suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 5th edition (incl. 34th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 6th edition (1983): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 6th edition (incl. 35th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Union 6th edition (incl. 36th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Society 7th edition (incl. 64th suppl.): Western Flycatcher ( Empidonax difficilis) [version 1] |
American Ornithologists' Society 7th edition (incl. 65th suppl.): Western Flycatcher ( Empidonax difficilis) |
Avibase taxonomic concepts (current): Western Flycatcher ( Empidonax difficilis) [version 1] |
Avibase taxonomic concepts v. 2023 (May 2023): Pacific-slope or Cordilleran Flycatcher ( Empidonax [difficilis or occidentalis]) |
Avibase taxonomic concepts v. 01 (August 2013): Pacific-slope or Cordilleran Flycatcher ( Empidonax [difficilis or occidentalis]) |
Avibase taxonomic concepts v. 02 (May 2014): Pacific-slope or Cordilleran Flycatcher ( Empidonax [difficilis or occidentalis]) |
Avibase taxonomic concepts v. 03 (March 2015): Pacific-slope or Cordilleran Flycatcher ( Empidonax [difficilis or occidentalis]) |
Avibase taxonomic concepts v. 04 (Aug 2016): Pacific-slope or Cordilleran Flycatcher ( Empidonax [difficilis or occidentalis]) |
Avibase taxonomic concepts v. 05 (Jan 2017): Pacific-slope or Cordilleran Flycatcher ( Empidonax [difficilis or occidentalis]) |
Avibase taxonomic concepts v. 06 (Feb 2018): Pacific-slope or Cordilleran Flycatcher ( Empidonax [difficilis or occidentalis]) |
Avibase taxonomic concepts v. 07 (Feb 2020): Pacific-slope or Cordilleran Flycatcher ( Empidonax [difficilis or occidentalis]) |
Avibase taxonomic concepts v. 08 (Feb 2021): Pacific-slope or Cordilleran Flycatcher ( Empidonax [difficilis or occidentalis]) |
Clements 1st edition: Western Flycatcher ( Empidonax difficilis) [version 1] |
Clements, version 2023: Western Flycatcher ( Empidonax difficilis) [version 1] |
Clements 3rd edition: Western Flycatcher ( Empidonax difficilis) [version 1] |
eBird version 1.50: Pacific-slope/Cordilleran Flycatcher (Western) ( Empidonax difficilis/occidentalis) |
eBird version 1.52: Pacific-slope/Cordilleran Flycatcher (Western) ( Empidonax difficilis/occidentalis) |
eBird version 1.53: Pacific-slope/Cordilleran Flycatcher (Western Flycatcher) ( Empidonax difficilis/occidentalis) |
eBird version 1.54: Pacific-slope/Cordilleran Flycatcher (Western Flycatcher) ( Empidonax difficilis/occidentalis) |
eBird version 1.55: Pacific-slope/Cordilleran Flycatcher (Western Flycatcher) ( Empidonax difficilis/occidentalis) |
eBird version 2015: Pacific-slope/Cordilleran Flycatcher (Western Flycatcher) ( Empidonax difficilis/occidentalis) |
eBird version 2016: Pacific-slope/Cordilleran Flycatcher (Western Flycatcher) ( Empidonax difficilis/occidentalis) |
eBird version 2017: Pacific-slope/Cordilleran Flycatcher (Western Flycatcher) ( Empidonax difficilis/occidentalis) |
eBird version 2018: Pacific-slope/Cordilleran Flycatcher (Western Flycatcher) ( Empidonax difficilis/occidentalis) |
eBird version 2019: Pacific-slope/Cordilleran Flycatcher (Western Flycatcher) ( Empidonax difficilis/occidentalis) |
eBird version 2021: Pacific-slope/Cordilleran Flycatcher (Western Flycatcher) ( Empidonax difficilis/occidentalis) |
eBird version 2022: Pacific-slope/Cordilleran Flycatcher (Western Flycatcher) ( Empidonax difficilis/occidentalis) |
eBird version 2023: Western Flycatcher ( Empidonax difficilis) [version 1] |
Howard and Moore 2nd edition: Western Flycatcher ( Empidonax difficilis) [version 1] |
IOC World Bird Names, version 13.2: Western Flycatcher ( Empidonax difficilis) [version 1] |
IOC World Bird Names, version 14.1: Western Flycatcher ( Empidonax difficilis) [version 1] |
Morony, Bock and Farrand: Pacific-slope Flycatcher ( Empidonax difficilis) [version 1] |
Peters' Check-list of the Birds: Empidonax difficilis [version 1] |
Peters' Check-list of the Birds (original): Empidonax difficilis [version 1] |
Peters' Check-list of the Birds (2nd edition): Empidonax difficilis [version 1] |
Working Group Avian Checklists, version 0.03: Western Flycatcher ( Empidonax difficilis) [version 1] |
Working Group Avian Checklists, version 0.04 (7/07/2024): Western Flycatcher ( Empidonax difficilis) [version 1] |
Taxonomic status:
Species status: full species
Your sightings
You must be logged in to view your sighting details. To register to myAvibase click here.
Other synonyms
See also the taxonomic synonyms table.
Avibase has been visited 400,653,036 times since 24 June 2003. © Denis Lepage | Privacy policy