Published in Journal für Ornithologie, in 1915, in volume 63, pages 70-111

Published in Journal für Ornithologie, in 1915, in volume 63, pages 229-267

Published in Journal für Ornithologie, in 1915, in volume 63, pages 295-299

Published in Journal für Ornithologie, in 1915, in volume 63, pages 137-228

Published in Journal für Ornithologie, in 1915, in volume 63, pages 303-304

Published in Journal für Ornithologie, in 1915, in volume 63, pages 299-302

Published in Journal für Ornithologie, in 1915, in volume 63, pages 268-295

Published in Journal für Ornithologie, in 1915, in volume 63, pages 613-615

Published in Journal für Ornithologie, in 1915, in volume 63, pages 557-568

Published in Journal für Ornithologie, in 1915, in volume 63, pages 604-613

Published in Journal für Ornithologie, in 1915, in volume 63, pages 569-604

Published in Journal für Ornithologie, in 1915, in volume 63, pages 615

Published in Journal für Ornithologie, in 1915, in volume 63, pages 132-134

Published in Journal für Ornithologie, in 1915, in volume 63, pages 118-123

Published in Journal für Ornithologie, in 1915, in volume 63, pages 135-136

Published in Journal für Ornithologie, in 1915, in volume 63, pages 1-69

Published in Journal für Ornithologie, in 1915, in volume 63, pages 131-132

Published in Journal für Ornithologie, in 1915, in volume 63, pages 112-118

Published in Journal für Ornithologie, in 1915, in volume 63, pages 134-135

Published in Journal für Ornithologie, in 1915, in volume 63, pages 124-129

Published in Journal für Ornithologie, in 1915, in volume 63, pages 403-504

Published in Journal für Ornithologie, in 1915, in volume 63, pages 507-510

Published in Journal für Ornithologie, in 1915, in volume 63, pages 505-507

Published in Journal für Ornithologie, in 1915, in volume 63, pages 305-340

Published in Journal für Ornithologie, in 1915, in volume 63, pages 510-511