Published in Journal für Ornithologie, in 1901, in volume 49, pages 115

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

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1890, in volume 42, pages 438

Created: 2013-03-02, modified: 2013-03-02

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1879, in volume 31, pages 381-382

Created: 2013-03-02, modified: 2013-03-02