Published in Journal für Ornithologie, in 1916, in volume 64, pages 419-420

Published in Journal für Ornithologie, in 1916, in volume 64, pages 398-412

Published in Journal für Ornithologie, in 1916, in volume 64, pages 379-397

Published in Journal für Ornithologie, in 1916, in volume 64, pages 412-413

Published in Journal für Ornithologie, in 1916, in volume 64, pages 277-324

Published in Journal für Ornithologie, in 1916, in volume 64, pages 424-426

Published in Journal für Ornithologie, in 1916, in volume 64, pages 413-414

Published in Journal für Ornithologie, in 1916, in volume 64, pages 325-371

Published in Journal für Ornithologie, in 1916, in volume 64, pages 414-419

Published in Journal für Ornithologie, in 1916, in volume 64, pages 427-428

Published in Journal für Ornithologie, in 1916, in volume 64, pages 421-424

Published in Journal für Ornithologie, in 1916, in volume 64, pages 371-378

Published in Journal für Ornithologie, in 1916, in volume 64, pages 156-160

Published in Journal für Ornithologie, in 1916, in volume 64, pages 155-156

Published in Journal für Ornithologie, in 1916, in volume 64, pages 161-164

Published in Journal für Ornithologie, in 1916, in volume 64, pages 1-120

Published in Journal für Ornithologie, in 1916, in volume 64, pages 154-155

Published in Journal für Ornithologie, in 1916, in volume 64, pages 611-612

Published in Journal für Ornithologie, in 1916, in volume 64, pages 605-611

Published in Journal für Ornithologie, in 1916, in volume 64, pages 614

Published in Journal für Ornithologie, in 1916, in volume 64, pages 612-614

Published in Journal für Ornithologie, in 1916, in volume 64, pages 582-604

Published in Journal für Ornithologie, in 1916, in volume 64, pages 489-581

Published in Journal für Ornithologie, in 1916, in volume 64, pages 429-488

Published in Journal für Ornithologie, in 1916, in volume 64, pages 244-251

Published in Journal für Ornithologie, in 1916, in volume 64, pages 196-228

Published in Journal für Ornithologie, in 1916, in volume 64, pages 241-243

Published in Journal für Ornithologie, in 1916, in volume 64, pages 165-196

Published in Journal für Ornithologie, in 1916, in volume 64, pages 252-267