Kordofan sparrow explained

The Kordofan sparrow (Passer cordofanicus), also known as the Kordofan rufous sparrow, is a sparrow found only in southwestern Sudan and adjacent border regions of South Sudan and Chad.^[1] It is frequently considered a subspecies of the Kenya sparrow, which in turn is considered a subspecies of the great sparrow.^[2]

References

Further reading

• A List of the Birds of the Anglo-Egyptian Sudan, based on the Collections of Mr. A. L. Butler, Mr. A. Chapman and Capt. H. Lynes, R. N., and Major Cuthebert Christy, R. A. M. C. (T. F.). Part IV (concluded). Pelecanidæ–Struthionidæ. Sclater. W. L.. Mackworth-Praed. C.. The Ibis. 11. 2008. 2. 4. 781–854. 10.1111/j.1474-919x.1920.tb06750.x.
• Book: Summers-Smith, J. Denis. J. Denis Summers-Smith. 1988. illustrated by Robert Gillmor. The Sparrows. T. & A. D. Poyser. Calton, Staffs, England. 0-85661-048-8. registration.

Notes and References

1. Web site: BirdLife International. 2010. Species factsheet: Passer cordofanicus. 24 June 2010.
2. Kirwan. Guy M.. 2008. Studies of Socotran Birds III. Morphological and mensural evidence for a 'new' species in the Rufous Sparrow Passer motitensis complex endemic to the island of Abd 'Al Kuri, with the validation of Passer insularis Sclater & Hartlaub, 1881. Bulletin of the British Ornithologists' Club. 128. 2. 83–93.