Published in Journal für Ornithologie, in 1889, in volume 37, pages 109-110

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Published in Journal für Ornithologie, in 1905, in volume 53, pages 261-264

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Published in Journal für Ornithologie, in 1901, in volume 49, pages 279-280

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Published in Journal für Ornithologie, in 1903, in volume 51, pages 306-307

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Published in Journal für Ornithologie, in 1903, in volume 51, pages 304

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Published in Journal für Ornithologie, in 1903, in volume 51, pages 301-304

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Published in Journal für Ornithologie, in 1899, in volume 47, pages 289-290

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Published in Journal für Ornithologie, in 1905, in volume 53, pages 245-249

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Published in Journal für Ornithologie, in 1905, in volume 53, pages 422-423

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Published in Journal für Ornithologie, in 1905, in volume 53, pages 420-422

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Published in Journal für Ornithologie, in 1905, in volume 53, pages 423-425

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Published in Journal für Ornithologie, in 1905, in volume 53, pages 425-429

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Published in Journal für Ornithologie, in 1887, in volume 35, pages 221-222

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Published in Journal für Ornithologie, in 1901, in volume 49, pages 276-279

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Published in Journal für Ornithologie, in 1902, in volume 50, pages 127-131

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Published in Journal für Ornithologie, in 1902, in volume 50, pages 125-127

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Published in Journal für Ornithologie, in 1903, in volume 51, pages 507-514

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in 1899, pages 1-102

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Published in Journal für Ornithologie, in 1898, in volume 46, pages 309-310

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Published in Journal für Ornithologie, in 1903, in volume 51, pages 305-306

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Published in Journal für Ornithologie, in 1903, in volume 51, pages 307-309

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Published in Journal für Ornithologie, in 1899, in volume 47, pages 288-289

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Published in Journal für Ornithologie, in 1899, in volume 47, pages 286-288

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Published in Journal für Ornithologie, in 1897, in volume 45, pages 193-195

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Published in Journal für Ornithologie, in 1897, in volume 45, pages 190-193

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Published in Journal für Ornithologie, in 1904, in volume 52, pages 315-316

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Published in Journal für Ornithologie, in 1904, in volume 52, pages 306-308

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Published in Journal für Ornithologie, in 1904, in volume 52, pages 308-313

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Published in Journal für Ornithologie, in 1904, in volume 52, pages 313-314

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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 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 1891, in volume 39, pages 220-223

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Published in Journal für Ornithologie, in 1891, in volume 39, pages 427-434

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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 1891, in volume 39, pages 34-39

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Published in Journal für Ornithologie, in 1891, in volume 39, pages 311-314

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Published in Journal für Ornithologie, in 1894, in volume 42, pages 443-444

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Published in Journal für Ornithologie, in 1892, in volume 40, pages 129-134

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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 1886, in volume 34, pages 117-119

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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 101-103

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Published in Journal für Ornithologie, in 1884, in volume 32, pages 238-242

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Published in Journal für Ornithologie, in 1884, in volume 32, pages 252-254

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Published in Journal für Ornithologie, in 1889, in volume 37, pages 185-189

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Published in Journal für Ornithologie, in 1899, in volume 47, pages 122-123

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