REFERENCES
- Ash , J. S. and Gulllick , T. M. 1989 . The present situation regarding the endemic breeding birds of Ethiopia. . Scopus , 13 : 9696
- Benson , C. W. 1942 . A new species and ten new races from Southern Abissinia. . Bull. Brit. Om. Club , 63 : 8 – 19 .
- Borghesio , L. Ruspolii. Scopus. (in press a). Field observations on Prince Ruspoli's TuracoTuuruco
- Borghesio , L. (in press b). Observations on the ecology of Tauraco ruspolii and Tauraco . Leucotis , in southern Ethiopia.Bull. Brit. Orn. Club.
- Collar , N. and Stuart , S. 1985 . Threatened birds of Africa and related islands. The ICBP/IUCN Red Data Book Part 1, , 3rd edition Cambridge : ICBP .
- Collar , N. , Crosby , M. J. and Stattersfield , A. J. 1994 . Birds to Watch 2. The World List of Threatened Birds. BirdLife Conservation Series no.4 Cambridge : BirdLife International .
- Dellelegn , Y . 1991 . Prince Ruspoli's Turaco. . Walia , 13 : 29 – 35 .
- Emlen , J. T. 1977 . Population densities derived from transect counts. . Auk , 88 : 323 – 342 .
- Emlen , J. T. 1977 . Estimating breeding season bird densities from transect counts. . The Auk , 94 : 455468
- IUCN . 1994 . IUCN Red List Categories Gland : IUCN .
- Salvadori , T. 1913 . Turacus ruspolii). 1 – 2 . On a rare species of touracou (Ibis (10)l
- Syvertsen , P. O. and Dellelegn , Y. 1991 . The status of some bird species endemic to south Ethiopia. . Scopus , 15 : 30 – 34 .
- Wolde-Mariam , M. 1969 . An atlas of Ethiopia Addis Ababa : Addis Ababa University Press. .