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for specific data and File Numbers
for photos: 
 
| Alder or Willow Flycatcher, Empidonax (trailii) alnorum <#786> -- J. J. Audubon     | Ash-throated Flycatcher, Myiarchus cinerascens
  <#318> --
  H. Clarke       | Ash-throated Flycatcher, Myiarchus cinerascens <#77> -- R. Leung       | Brown-crested Flycatcher, Myiarchus tyrannulus <#609> -- J.
  Farrand, Jr.     | 
| Dusky Flycatcher, Empidonax oberholseri
  <#787> --
  D.L. Malick       | Gray Flycatcher, Empidonax wrightii <#406> -- D. & W. Weathers     | Hammond’s Flycatcher, Empidonax hammondii <#826> -- J.
  Farrand, Jr.       | Hammond’s Flycatcher, Empidonax hammondii <#458> -- K. Hansen,
  J. Petersen & T. Theimer     | 
| Hammond’s Flycatcher, Empidonax hammondii
  <#831> --
  D. L. Malick       | Olive-sided Flycatcher,Contopus (Nuttallornis) borealis
   <#239> -- J. J.
  Audubon     | Olive-sided Flycatcher,Contopus (Nuttallornis)
  borealis <#654>
  -- J. J. Audubon     | Olive-sided Flycatcher,Contopus (Nuttallornis) borealis <#605> -- J.
  Farrand, Jr.     | 
| Olive-sided Flycatcher,Contopus (Nuttallornis) borealis <#457> -- K. Hansen, J. Petersen & T.
  Theimer     | Olive-sided Flycatcher, Contopus (Nuttallornis)
  borealis <#79>
  -- R. Leung       | Scissor-tailed Flycatcher, Tyrannus (Muscivora)
  forficata <#211>
  -- J. J. Audubon     | Vermilion Flycatcher, Pyrocephalus rubinus
  <#317> --
  H. Clarke     | 
 
| Western Flycatcher, Empidonax difficulis <#274> -- H.
  Clarke     |