Published in Journal für Ornithologie, in 1897, in volume 45, pages 178-183

Created: 2014-09-04, modified: 2014-09-04

Published in Journal für Ornithologie, in 1891, in volume 39, pages 275-292

Created: 2014-09-04, modified: 2014-09-04

Published in Journal für Ornithologie, in 1892, in volume 40, pages 151-167

Created: 2014-09-04, modified: 2014-09-04

Published in Journal für Ornithologie, in 1891, in volume 39, pages 165-199

Created: 2014-09-04, modified: 2014-09-04

Published in Journal für Ornithologie, in 1896, in volume 44, pages 67-81

Created: 2014-09-04, modified: 2014-09-04

Published in Journal für Ornithologie, in 1894, in volume 42, pages 136-155

Created: 2014-09-04, modified: 2014-09-04

Published in Journal für Ornithologie, in 1892, in volume 40, pages 167-170

Created: 2014-09-04, modified: 2014-09-04

Published in Journal für Ornithologie, in 1890, in volume 38, pages 94-98

Created: 2014-09-04, modified: 2014-09-04

Published in Journal für Ornithologie, in 1892, in volume 40, pages 443-456

Created: 2014-09-04, modified: 2014-09-04

Published in Journal für Ornithologie, in 1897, in volume 45, pages 480-498

Created: 2014-09-04, modified: 2014-09-04

Published in Journal für Ornithologie, in 1892, in volume 40, pages 237-253

Created: 2014-09-04, modified: 2014-09-04

Published in Bulletin of The British Ornithologists' Club, in 1997, in volume 117, pages 235-236

Created: 2012-12-02, modified: 2012-12-02