Published in Journal für Ornithologie, in 1881, in volume 29, pages 51-65
Published in Journal für Ornithologie, in 1881, in volume 29, pages 65-69
Published in Journal für Ornithologie, in 1881, in volume 29, pages 70-102
Published in Journal für Ornithologie, in 1881, in volume 29, pages 103-107
Published in Journal für Ornithologie, in 1881, in volume 29, pages 107-110
Published in Journal für Ornithologie, in 1881, in volume 29, pages 110-111
Published in Journal für Ornithologie, in 1881, in volume 29, pages 177-188
Published in Journal für Ornithologie, in 1881, in volume 29, pages 188-196
Published in Journal für Ornithologie, in 1881, in volume 29, pages 196-203
Published in Journal für Ornithologie, in 1881, in volume 29, pages 203-208
Published in Journal für Ornithologie, in 1881, in volume 29, pages 212-215
Published in Journal für Ornithologie, in 1881, in volume 29, pages 215-218
Published in Journal für Ornithologie, in 1881, in volume 29, pages 219-222
Published in Journal für Ornithologie, in 1881, in volume 29, pages 223
Published in Journal für Ornithologie, in 1881, in volume 29, pages 224
Published in Journal für Ornithologie, in 1881, in volume 29, pages 225-289
Published in Journal für Ornithologie, in 1881, in volume 29, pages 289-323
Published in Journal für Ornithologie, in 1881, in volume 29, pages 323-332
Published in Journal für Ornithologie, in 1881, in volume 29, pages 332-336
Published in Journal für Ornithologie, in 1881, in volume 29, pages 336
Published in Journal für Ornithologie, in 1881, in volume 29, pages 400-401
Published in Journal für Ornithologie, in 1881, in volume 29, pages 401-405
Published in Journal für Ornithologie, in 1881, in volume 29, pages 405-416
Published in Journal für Ornithologie, in 1881, in volume 29, pages 424-428