I can't really follow the continuing widespread obsession with African collared dove. Every time that it does come up in these columns there never seems to be any evidence that it's of anything remotely like regular occurrence anywhere that's well beyond its natural range. Yes, there may well be some in captivity and, yes, a tiny number may conceivably escape - the same as with any captive bird. But where there is a widespread (and spreading) wild alternative, Eurasian collared dove, I don't see any point in identifying such birds as anything else.