Streptopelia decaocto Frivaldszky, 1838

Eurasian Collared-Doves are extremely successful colonizers and breeders, and some scientists believe that they may be competing with native North American doves, although negative effects have yet to be explicitly demonstrated. In California, Eurasian Collared-Doves may be competitively displacing another non-native dove, the Spotted Dove (Streptopelia chinensis). When present in large numbers, they can discourage other species from using bird feeders, and may even aggressively defend these food sources, chasing other birds away. (Johnson and Donaldson-Fortier, 2009). In Martinique and Guadaloupe: With the increase in the area of its distribution, it is likely that Streptopelia decaocto will compete with the native species Zenaida aurita. (GISD, acesso em 29/06/2021)

Hybridization of Streptopelia decaocto with the indigenous dove Zenaida aurita is suspected. (GISD, acesso em 29/06/2021); Hibridização entre Streptopelia decaocto e Streptopelia roseogrisea (Lijtmaer et al, 2003)

Eurasian Collared-Doves can also carry the disease-causing parasite Trichomonas gallinae, which they may spread to native doves at feeders or birdbaths, or to the native hawks that feed on them. (Johnson and Donaldson-Fortier, 2009). It is also a carrier of the pigeon circovirus which causes illness and mortality in the Columbidae family (Kubicek and Taras, 2005).