Published in Journal für Ornithologie, in 1874, in volume 22, pages 76-80

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Published in Journal für Ornithologie, in 1864, in volume 12, pages 411-413

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Published in Journal für Ornithologie, in 1867, in volume 15, pages 237-249

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Published in Journal für Ornithologie, in 1867, in volume 15, pages 107

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Published in Ibis, in 1880, in volume 4, issue 1, pages 75-81

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Published in Ibis, in 1880, in volume 4, issue 2, pages 218-220

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Published in Ibis, in 1881, in volume 5, issue 1, pages 102-115

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Published in Journal für Ornithologie, in 1867, in volume 15, pages 1-36

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Published in Ibis, in 1880, in volume 4, issue 3, pages 329-333

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Published in Ibis, in 1881, in volume 5, issue 4, pages 532-540

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Published in Ibis, in 1881, in volume 5, issue 2, pages 245-249

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Published in Ibis, in 1877, in volume 1, issue 1, pages 48-65

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Published in Journal für Ornithologie, in 1874, in volume 22, pages 167-224

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Published in Journal für Ornithologie, in 1868, in volume 16, pages 238-245

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Published in Journal für Ornithologie, in 1866, in volume 14, pages 37-41

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Published in Ibis, in 1880, in volume 4, issue 4, pages 429-434

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Published in Proceedings of the Zoological Society of London, in 1875, in volume 1875, pages 631-633

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Published in Journal für Ornithologie, in 1863, in volume 11, pages 29-40

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Published in Ibis, in 1874, in volume 4, issue 3, pages 270-299

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Published in Proceedings of The Zoological Society of London, in 1878, in volume 1878, pages 440-441

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Published in Proceedings of The Zoological Society of London, in 1874, in volume 1874, pages 90-91

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Published in Proceedings of the Zoological Society of London, in 1877, in volume 1877, pages 407-410

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Published in Ibis, in 1883, in volume 1, issue 2, pages 142-144

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Published in Proceedings of The Zoological Society of London, in 1876, in volume 1876, pages 19-20

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Published in Proceedings of The Zoological Society of London, in 1874, in volume 1874, pages 92-95

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Published in Proceedings of The Zoological Society of London, in 1879, in volume 1879, pages 9-17

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Published in Journal für Ornithologie, in 1874, in volume 22, pages 54

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Published in Ibis, in 1875, in volume 5, issue 4, pages 467-468

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Published in Journal für Ornithologie, in 1872, in volume 20, pages 225-230

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Published in Journal für Ornithologie, in 1872, in volume 20, pages 161-188

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Published in Journal für Ornithologie, in 1872, in volume 20, pages 81-112

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Published in Journal für Ornithologie, in 1872, in volume 20, pages 241-274

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Published in Ibis, in 1906, in volume 6, issue 3, pages 401-407

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Published in Journal für Ornithologie, in 1907, in volume 55, pages 301-305

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Published in Journal für Ornithologie, in 1872, in volume 20, pages 30-58

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Published in The Wilson Bulletin, in 1927, in volume 39, issue 3, pages 146-155

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Published in Journal für Ornithologie, in 1870, in volume 18, pages 377-380

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Published in Notes From The Leyden Museum, in 1902, in volume 23, issue 3, pages 153-155

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Published in Ibis, in 1886, in volume 4, issue 3, pages 237-258

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Published in Ibis, in 1872, in volume 2, issue 2, pages 144-147

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Published in Journal für Ornithologie, in 1902, in volume 50, pages 349-356

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Published in Notes From The Leyden Museum, in 1902, in volume 23, issue 3, pages 162-179

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Published in Notes From The Leyden Museum, in 1901, in volume 23, issue 1, pages 1-14

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Published in Notes From The Leyden Museum, in 1901, in volume 23, issue 1, pages 33-52

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Published in Notes From The Leyden Museum, in 1901, in volume 23, issue 2, pages 58-62

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Published in Notes From The Leyden Museum, in 1901, in volume 23, issue 2, pages 97-110

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Published in Notes From The Leyden Museum, in 1901, in volume 22, issue 3, pages 129-161

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Published in Ibis, in 1888, in volume 6, issue 3, pages 307-309

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Published in Ibis, in 1869, in volume 5, issue 4, pages 378-381

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Published in Journal für Ornithologie, in 1880, in volume 28, pages 296-310

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