Cypseloides (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Cypseloides" in English language version.

refsWebsite

Global rank English rank

387^th place

373^rd place

6^th place

1,007^th place

1,255^th place

archive.org

Streubel, August Vollrath (1848). "Die Cypseliden des Berliner Museums". Isis von Oken (in German). Cols 348–373 [366].
Sclater, Philip Lutley (1865). "Notes on the genera and species of Cypselidae". Proceedings of the Zoological Society of London: 593–617 [614].
Peters, James Lee, ed. (1940). Check-list of Birds of the World. Vol. 4. Cambridge, Massachusetts: Harvard University Press. p. 242.

Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (January 2022). "Owlet-nightjars, treeswifts & swifts". IOC World Bird List Version 12.1. International Ornithologists' Union. Retrieved 9 Jul 2022.