Published in Journal für Ornithologie, in 1891, in volume 39, pages 434-437

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Published in Journal für Ornithologie, in 1892, in volume 40, pages 123-129

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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 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 1894, in volume 42, pages 232-233

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Published in Journal für Ornithologie, in 1889, in volume 37, pages 82-84

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Published in Journal für Ornithologie, in 1892, in volume 40, pages 222-226

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Published in Journal für Ornithologie, in 1892, in volume 40, pages 226-232

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Published in Journal für Ornithologie, in 1892, in volume 40, pages 214-216

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Published in Journal für Ornithologie, in 1894, in volume 42, pages 348-350

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Published in Journal für Ornithologie, in 1894, in volume 42, pages 107-109

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Published in Journal für Ornithologie, in 1891, in volume 39, pages 212-220

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Published in Journal für Ornithologie, in 1891, in volume 39, pages 206-212

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Published in Journal für Ornithologie, in 1891, in volume 39, pages 19-22

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Published in Journal für Ornithologie, in 1891, in volume 39, pages 39-42

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Published in Journal für Ornithologie, in 1891, in volume 39, pages 44-47

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Published in Journal für Ornithologie, in 1891, in volume 39, pages 42-44

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Published in Journal für Ornithologie, in 1891, in volume 39, pages 13-19

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Published in Journal für Ornithologie, in 1885, in volume 33, pages 371-375

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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 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 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 1889, in volume 37, pages 338-344

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Published in Journal für Ornithologie, in 1889, in volume 37, pages 333-338

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Published in Journal für Ornithologie, in 1889, in volume 37, pages 329-333

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Published in Journal für Ornithologie, in 1885, in volume 33, pages 467

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Published in Journal für Ornithologie, in 1888, in volume 36, pages 115-119

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Published in Journal für Ornithologie, in 1888, in volume 36, pages 107-112

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Published in Journal für Ornithologie, in 1888, in volume 36, pages 99-103

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Published in Journal für Ornithologie, in 1888, in volume 36, pages 103-107

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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 1870, in volume 18, pages 317-319

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Published in Journal für Ornithologie, in 1869, in volume 17, pages 213-214

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