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  1. On eastern Empidonaces with particular reference to variation in E. traillii /
    By: Snyder, L. L. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1953.
    Contributed by: ROM - University of Toronto (archive.org)
    Subjects: 1953  Alder flycatcher  canimp  Empidonax  Ontario  
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  2. A phylogeny of the thirty-three genera in the Empidonax assemblage of tyrant flycatchers. American Museum novitates ; no. 2846
    By: Lanyon, Wesley E.
    Publication info: New York, N.Y. : American Museum of Natural History 1986
    Contributed by: American Museum of Natural History Library
    Subjects: Empidonax  Flycatchers  Flycatchers -- Phylogeny.  Tyrannidae  Tyrannidae -- Phylogeny.  
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  1. New bird records for Cozumel Island found in scientific collections
    By: Macouzet,Tania - Escalante-Pliego,Patricia
    Type: Article
    In: Revista mexicana de biodiversidad
    Date: 2013-03-01
    Subjects: Caribbean  Catharus  Empidonax  migratory  Vireo  Zonotrichia  
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