Published in Journal für Ornithologie, in 1868, in volume 16, pages 71

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Published in The Auk, in 1919, in volume 36, pages 576-577

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Published in Journal für Ornithologie, in 1906, in volume 54, pages 329-358

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Published in Journal für Ornithologie, in 1853, in volume 1, pages 80

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Published in Journal für Ornithologie, in 1879, in volume 27, pages 84-89

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Published in Journal für Ornithologie, in 1864, in volume 12, pages 466

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Published in Journal für Ornithologie, in 1868, in volume 16, pages 287-288

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Published in Journal für Ornithologie, in 1871, in volume 19, pages 399

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Published in Journal für Ornithologie, in 1872, in volume 20, pages 318-319

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Published in The Auk, in 1919, in volume 36, pages 536-540

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Published in Journal für Ornithologie, in 1867, in volume 15, pages 360

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Published in Journal für Ornithologie, in 1869, in volume 17, pages 359

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Published in Journal für Ornithologie, in 1871, in volume 19, pages 78

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Published in Journal für Ornithologie, in 1872, in volume 20, pages 399

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Published in The Auk, in 1899, in volume 16, pages 79-80

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Published in Journal für Ornithologie, in 1873, in volume 21, issue 3, pages 315-320

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Published in Journal für Ornithologie, in 1887, in volume 35, pages 92-94

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Published in Journal für Ornithologie, in 1887, in volume 35, pages 96-99

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Published in Journal für Ornithologie, in 1876, in volume 24, pages 98-102

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Published in Journal für Ornithologie, in 1881, in volume 29, pages 332-336

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Published in Journal für Ornithologie, in 1879, in volume 27, pages 210-211

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Published in Journal für Ornithologie, in 1889, in volume 37, pages 73

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Published in Journal für Ornithologie, in 1889, in volume 37, pages 76-82

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Published in Journal für Ornithologie, in 1889, in volume 37, pages 84-85

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Published in Journal für Ornithologie, in 1870, in volume 18, pages 398-399

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Published in Journal für Ornithologie, in 1870, in volume 18, pages 237-238

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Published in Journal für Ornithologie, in 1870, in volume 18, pages 235-237

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Published in Journal für Ornithologie, in 1872, in volume 20, pages 235-236

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Published in Journal für Ornithologie, in 1891, in volume 39, pages 220-223

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Published in Journal für Ornithologie, in 1870, in volume 18, pages 317-319

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Published in Journal für Ornithologie, in 1873, in volume 21, pages 157-158

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Published in Journal für Ornithologie, in 1891, in volume 39, pages 27-34

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Published in Journal für Ornithologie, in 1891, in volume 39, pages 22-27

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Published in Journal für Ornithologie, in 1879, in volume 27, pages 445-447

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Published in Journal für Ornithologie, in 1879, in volume 27, pages 437-440

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Published in Journal für Ornithologie, in 1879, in volume 27, pages 335-336

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Published in Journal für Ornithologie, in 1882, in volume 30, pages 462-463

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Published in Journal für Ornithologie, in 1884, in volume 32, pages 436-438

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Published in Journal für Ornithologie, in 1884, in volume 32, pages 438-440

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Published in Journal für Ornithologie, in 1876, in volume 24, pages 443-446

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Published in Journal für Ornithologie, in 1883, in volume 31, pages 212-217

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Published in Journal für Ornithologie, in 1886, in volume 34, pages 117-119

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Published in Journal für Ornithologie, in 1882, in volume 30, pages 120-123

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Published in Journal für Ornithologie, in 1882, in volume 30, pages 123-124

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Published in Journal für Ornithologie, in 1880, in volume 28, pages 422-425

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Published in Journal für Ornithologie, in 1880, in volume 28, pages 419-421

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Published in Journal für Ornithologie, in 1883, in volume 31, pages 100-104

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Published in Journal für Ornithologie, in 1883, in volume 31, pages 104-106

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Published in Journal für Ornithologie, in 1885, in volume 33, pages 97-101

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Published in Journal für Ornithologie, in 1885, in volume 33, pages 23-26

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