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  1. By: Horton, Philippa - Grouw, Hein van - Johnstone, Ronald E
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 136
    Issue: 2
    Date: 2016
    Page Range: 129--138
    Publication Info: London, British Ornithologists' Club, 1893-
  2. By: Hume, Julian P - Grouw, Hein van
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 134
    Issue: 3
    Date: 2014
    Page Range: 168--193
    Publication Info: London, British Ornithologists' Club, 1893-
  3. By: Grouw, Hein van - Hume, Julian P
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 136
    Issue: 3
    Date: 2016
    Page Range: 172--198
    Publication Info: London, British Ornithologists' Club, 1893-
  4. By: Carlos, Caio J. - Voisin, Jean-François - Grouw, Hein van - Moreno, Ignacio Benites
    Type: Article
    Date: 2016-01-01
    Publication Info: Sociedade Brasileira de Zoologia
  5. By: Grouw, Hein van
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 134
    Issue: 1
    Date: 2014
    Page Range: 4--13
    Publication Info: London, British Ornithologists' Club, 1893-
  6. By: Grouw, Hein van
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 134
    Issue: 4
    Date: 2014
    Page Range: 291--301
    Publication Info: London, British Ornithologists' Club, 1893-