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  1. By: Smith, Paul
    Type: Article
    In: Neotropical Biology and Conservation
    Volume: 15
    Issue: 4
    Date: 2020-10-1
    Page Range: 409--414
    Publication Info: Brazil Universidade do Vale do Rio dos Sinos
    Subjects: Buteo swainsoni  Paraguay  Swainson’s Hawk
  2. By: Sarasola, José Hernán - Galmes, Maximiliano Adrián - Santillán, Miguel Ángel
    Type: Article
    In: El hornero
    Date: 2007-12-01
    Subjects: agroecosistemas  Aguilucho Langostero  Área de distribución austral  Buteo swainsoni  Conservación  migración  Mortalidades masivas  
  3. By: Bechard, Marc J - Sarasola, José Hernán - Woodbridge, Brian
    Type: Article
    In: El hornero
    Date: 2006-12-01
    Subjects: body mass  Buteo swainsoni  Fasting  Migration  Swainson's hawk