Sort By:
  1. Speciation in the genus Ochthoeca (Aves: Tyrannidae)
    By: Fitzpatrick, J W
    Type: Article
    In: Breviora
    Volume: 402
    Date: 1973
    Page Range: 1--13
    View Article
  2. Systematics and biogeography of the Tyrannid genus Todirostrum and related genera (Aves)
    By: Fitzpatrick, J W
    Type: Article
    In: Bulletin of The Museum of Comparative Zoology
    Volume: 147
    Date: 1976
    Page Range: 435--463
    View Article
  3. Twenty-one bird species or new or little known from the Republic of Colombia
    By: Fitzpatrick, J W - Willard, D E
    Type: Article
    In: Bulletin of The British Ornithologists' Club
    Volume: 102
    Date: 1982
    Page Range: 153--158
    View Article