Citation:
Baird, SF, 1858
Reference:
Rep.Expl.Surv.RR.Pac. p.198
Protonym:
Empidonax difficilis
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] |
Avibase taxonomic concepts (current): 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 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) |
Howard and Moore 2nd edition: 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] |
Taxonomic status:
Species status: species group (sometimes a species)
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Other synonyms
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