Pennant, T. Indian Zoology 2nd. London: Henry Hughs. 1790: 53.
biodiversitylibrary.org
Mayr, E; G.W.Cottrell (编). Check-list of birds of the world. Volume 1 2nd. Cambridge, Massachusetts: Museum of Comparative Zoology. 1979: 180–181 [2021-12-07]. (原始内容存档于2021-10-18).
Mayr, E; G.W.Cottrell (编). Check-list of birds of the world. Volume 1 2nd. Cambridge, Massachusetts: Museum of Comparative Zoology. 1979: 180–181 [2021-12-07]. (原始内容存档于2021-10-18).