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Expert(s): |
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Expert: |
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Notes: |
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Reference for: |
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Other Source(s):
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Source: |
IOC World Bird List (version 15.1), website (version 15.1)
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Acquired: |
2025 |
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Notes: |
Gill, F., D. Donsker, and P. Rasmussen, eds. 2025. IOC World Bird List (v 15.1. Available at http://www.worldbirdnames.org [Accessed 28 Feb 2025] |
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Reference for: |
Empidonax difficilis hellmayri |
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Source: |
NODC Taxonomic Code, database (version 8.0)
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Acquired: |
1996 |
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Notes: |
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Reference for: |
Empidonax difficilis hellmayri |
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Publication(s):
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Author(s)/Editor(s): |
American Ornithologists' Union
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Publication Date: |
1957 |
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Article/Chapter Title: |
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Journal/Book Name, Vol. No.: |
Check-list of North American Birds, 5th Edition |
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Page(s): |
xiii + 691 |
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Publisher: |
American Ornithologists' Union |
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Publication Place: |
Baltimore, Maryland, USA |
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ISBN/ISSN: |
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Notes: |
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Reference for: |
Empidonax difficilis hellmayri |
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Author(s)/Editor(s): |
Brodkorb, Pierce
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Publication Date: |
1935 |
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Article/Chapter Title: |
A New Flycatcher from Texas |
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Journal/Book Name, Vol. No.: |
Occasional Papers of the Museum of Zoology, no. 306 |
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Page(s): |
1-3 |
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Publisher: |
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Publication Place: |
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ISBN/ISSN: |
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Notes: |
https://hdl.handle.net/2027.42/56745 |
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Reference for: |
original description |
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Author(s)/Editor(s): |
Dickinson, Edward C., ed.
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Publication Date: |
2003 |
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Article/Chapter Title: |
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Journal/Book Name, Vol. No.: |
The Howard and Moore Complete Checklist of the Birds of the World, 3rd edition |
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Page(s): |
1039 |
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Publisher: |
Princeton University Press |
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Publication Place: |
Princeton, New Jersey, USA |
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ISBN/ISSN: |
0-691-11701-2 |
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Notes: |
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Reference for: |
Empidonax difficilis hellmayri |
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Author(s)/Editor(s): |
Traylor, Melvin A. Jr.
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Publication Date: |
1979 |
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Article/Chapter Title: |
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Journal/Book Name, Vol. No.: |
Check-list of Birds of the World, vol. 8 |
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Page(s): |
xv + 365 |
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Publisher: |
Museum of Comparative Zoology |
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Publication Place: |
Harvard, Cambridge, Massachusetts, USA |
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ISBN/ISSN: |
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Notes: |
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Reference for: |
Empidonax difficilis hellmayri |
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