Empidonax difficilis difficilis
Bird Info: Passeriformes, Subspecies, Tyrannidae (Tyrant Flycatchers)
ITIS Standard Report Page: Empidonax difficilis
… Reference for: Empidonax difficilis : Expert: Richard C. Banks : Notes: Chief, Bird Section, U.S.G.S. – B.R.D. – P.W.R.C. Reference for: Empidonax difficilis
www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=178348&source
Pacific-slope Flycatcher – Wikipedia, the free encyclopedia
The Pacific-slope Flycatcher (Empidonax difficilis) is a small insectivorous bird of the family Tyrannidae. It is native to coastal regions of western North America, including the Pacific Ocean and the southern Sea of Cortez, as far north as British Columbia and southern Alaska, but is replaced in the inland regions by the Cordilleran Flycatcher.
en.wikipedia.org/wiki/Empidonax_difficilis
Comprehensive Report Species – Empidonax difficilis
… American birds. Seventh edition. American Ornithologists’ Union, Washington, DC. 829 pp. Concept Reference Code: B98AOU01NAUS Name Used in Concept Reference: Empidonax difficilis
www.natureserve.org/explorer/servlet/NatureServe?searchSpeciesUid=ELEMENT_GLOBAL.2.103795
Empidonax difficilis – Wikispecies
Species: Empidonax difficilis Subspecies: E. d. cineritius  – E. d. difficilis  – E. d … route for a railroad from the Mississiippi River to the Pacific Ocean. Birds 9 p.198
species.wikimedia.org/wiki/Empidonax_difficilis
Introduction — Pacific-slope Flycatcher …
The name “ Empidonax difficilis †has had long association with the bird known as the Western Flycatcher. Recognition that 2 species existed under the guise of the Western …
bna.birds.cornell.edu/BNA/account/Pacific-slope_Flycatcher/INTRODUCTION.html
Pacific-slope Flycatcher (Empidonax difficilis) at Jordan Lake, NC
Pacific-slope Flycatcher (Empidonax difficilis) at Jordan Lake – First North Carolina Record. Latest update: last seen in same location at 2 pm, Saturday 1/22/2000.
www.carolinanature.com/birds/psfl.html
Pacific-slope Flycatcher (Empidonax difficilis)
Galileo Hill, Kern County, California May 2002 © Peter LaTourrette : PSFL-4 1st fall
www.birdphotography.com/species/psfl.html
All About Birds: Pacific-slope Flycatcher
Pacific-slope Flycatcher (Empidonax difficilis) and Cordilleran Flycatcher (Empidonax occidentalis). In The Birds of North America, No. 556 (A.
www.birds.cornell.edu/programs/AllAboutBirds/BirdGuide/Pacific-slope_Flycatcher.html
Comprehensive Report Species – Empidonax occidentalis
Check-list of North American birds. Seventh edition. American Ornithologists … Studies of Pacific-slope flycatcher (EMPIDONAX DIFFICILIS) show the species prefers old forests …
www.natureserve.org/explorer/servlet/NatureServe?searchName=Empidonax%20occidentalis
Pacific-slope Flycatcher, Empidonax difficilis, Stock Photography …
Pacific-slope Flycatcher, Empidonax difficilis, stock photography, stock photos, stock pictures, stock pics.
www.critterzone.com/gallery/bird-flycatcher-pacific-slope-gallery.htm