ABSTRACT. The Columbina lalpacoli (Temminck, 1811) dove, a small bird of the order Columbiformes, is abundant throughout Brazil and interacts closely with city inhabitants. This study describes the morphological and histochemical aspects of the epididymal region and ductus deferens of this species, comparing them with those of other bird species studied. It is believed that a better understanding of the reproductive biology of Columbina talpacoli could help to solve the ecological and sanitalY problems involving these birds. KEY WORDS. Columbidae, Columbiformes, male genital, epididymis, efferent ductuli, ductus deferens Most of the reports available in the literature on the morphology ofthe male genital system of birds refer to the domestic fowl (BRADLEY 1950;LAKE 1957;MARVAN 1969;TINGARY 1971 ;KING 1979), the turkey (HESS et at. 1976; HESS & THURTON 1977), and the guinea fowl (AIRE et at. 1979), with emphasis on this system 's macroscopic anatomy and functional aspects.The morphological study of the reproductive system of Brazilian birds is relatively recent and reflects a growing concern with the potential health risks to which our population may be exposed due to its increasingly closer interaction with dove species such as the Coillmbina talpacoti Temminck, 1881, which are known to be the carriers of many diseases.This work was carried out in continuation of the studies conducted on Columbia livia Gmelin, 1879(MARUCH et at. 1995, 1996. Its purpose is to describe the histology and histochemistry of the male reproductive organs of Coillmbina talpacoti, as a contribution toward a better understanding of the morphological and functional aspects of the genital system ofthe male Columbiformes. Such information could also provide a basis for more ample discussions on the reproduction of differents species of Brazilian birds.