Published in Journal für Ornithologie, in 1906, in volume 54, pages 1-77

Published in Journal für Ornithologie, in 1906, in volume 54, pages 78-99

Published in Journal für Ornithologie, in 1906, in volume 54, pages 100-140

Published in Journal für Ornithologie, in 1906, in volume 54, pages 152-154

Published in Journal für Ornithologie, in 1906, in volume 54, pages 154-157

Published in Journal für Ornithologie, in 1906, in volume 54, pages 157-158

Published in Journal für Ornithologie, in 1906, in volume 54, pages 158-160

Published in Journal für Ornithologie, in 1906, in volume 54, pages 301-321

Published in Journal für Ornithologie, in 1906, in volume 54, pages 323-324

Published in Journal für Ornithologie, in 1906, in volume 54, pages 324-325

Published in Journal für Ornithologie, in 1906, in volume 54, pages 326-328

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

Published in Journal für Ornithologie, in 1906, in volume 54, pages 359-383

Published in Journal für Ornithologie, in 1906, in volume 54, pages 383-407

Published in Journal für Ornithologie, in 1906, in volume 54, pages 411-428

Published in Journal für Ornithologie, in 1906, in volume 54, pages 477-478

Published in Journal für Ornithologie, in 1906, in volume 54, pages 478-479

Published in Journal für Ornithologie, in 1906, in volume 54, pages 481-497

Published in Journal für Ornithologie, in 1906, in volume 54, pages 497-519

Published in Journal für Ornithologie, in 1906, in volume 54, pages 519-526

Published in Journal für Ornithologie, in 1906, in volume 54, pages 528-533

Published in Journal für Ornithologie, in 1906, in volume 54, pages 534-557

Published in Journal für Ornithologie, in 1906, in volume 54, pages 558

Published in Journal für Ornithologie, in 1906, in volume 54, pages 559-561