REFERENCES
- Cramp , S. and Simmons , K. E.L. 1987 . The birds of the western Palaearctic. Vol Vol. 4 , Oxford : Oxford University Press .
- Kekilova , A. F. 1973 . The ecology of Streptopelia senegalensis ermanni near the Kopet-Dah regions of the Turkmen SSR . Izv. Akad. Nauk. Turkmen. SSR Ser. Biol , 4 : 63 – 69 .
- Rowan , M. K. 1983 . The doves, parrots, loeries and cuckoos of Southern Africa Cape Town : David Philip .
- Urban , E. K. , Fry , C. H. and Keith , S. 1986 . The birds of Africa London : Academic Press . II