Mayr, Ernst; Cottrell, G. William (编). Check-list of Birds of the World. Volume 1 2nd. Cambridge, Massachusetts: Museum of Comparative Zoology. 1979: 264 [2020-03-16]. (原始内容存档于2020-10-29).
Mayr, Ernst; Cottrell, G. William (编). Check-list of Birds of the World. Volume 1 2nd. Cambridge, Massachusetts: Museum of Comparative Zoology. 1979: 264 [2020-03-16]. (原始内容存档于2020-10-29).