Published in Journal für Ornithologie, in 1889, in volume 37, issue 3, pages 289-321

Published in Journal für Ornithologie, in 1889, in volume 37, pages 205-225

Published in Journal für Ornithologie, in 1889, in volume 37, pages 193-205

Published in Journal für Ornithologie, in 1889, in volume 37, pages 287-288

Published in Journal für Ornithologie, in 1889, in volume 37, pages 263

Published in Journal für Ornithologie, in 1889, in volume 37, pages 286

Published in Journal für Ornithologie, in 1889, in volume 37, pages 225-230

Published in Journal für Ornithologie, in 1889, in volume 37, pages 231-236

Published in Journal für Ornithologie, in 1889, in volume 37, pages 236-245

Published in Journal für Ornithologie, in 1889, in volume 37, pages 326-328

Published in Journal für Ornithologie, in 1889, in volume 37, pages 96-97

Published in Journal für Ornithologie, in 1889, in volume 37, pages 89-96

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

Published in Journal für Ornithologie, in 1889, in volume 37, pages 51-62

Published in Journal für Ornithologie, in 1889, in volume 37, pages 46-50

Published in Journal für Ornithologie, in 1889, in volume 37, pages 1-33

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

Published in Journal für Ornithologie, in 1889, in volume 37, pages 110-112

Published in Journal für Ornithologie, in 1889, in volume 37, pages 85-89

Published in Journal für Ornithologie, in 1889, in volume 37, pages 112

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

Published in Journal für Ornithologie, in 1889, in volume 37, pages 101-109

Published in Journal für Ornithologie, in 1889, in volume 37, pages 67-72

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

Published in Journal für Ornithologie, in 1889, in volume 37, pages 33-46

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

Published in Journal für Ornithologie, in 1889, in volume 37, pages 179-180

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

Published in Journal für Ornithologie, in 1889, in volume 37, pages 160-177

Published in Journal für Ornithologie, in 1889, in volume 37, pages 137-153

Published in Journal für Ornithologie, in 1889, in volume 37, pages 120-136

Published in Journal für Ornithologie, in 1889, in volume 37, pages 153-160

Published in Journal für Ornithologie, in 1889, in volume 37, pages 177-179

Published in Journal für Ornithologie, in 1889, in volume 37, pages 189-191

Published in Journal für Ornithologie, in 1889, in volume 37, pages 113-120

Published in Journal für Ornithologie, in 1889, in volume 37, pages 180-182

Published in Journal für Ornithologie, in 1889, in volume 37, pages 345-440

Published in Journal für Ornithologie, in 1889, in volume 37, pages 338-344

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

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

Published in Journal für Ornithologie, in 1889, in volume 37, pages 97-101