No rabbits are diurnal and crepuscular which means they are happy to feed at both night and day and at low lights and their eyes are perfectly adapted for these conditions ... dogs are crepuscular so are at a disadvantage straight away ... add to that they are in their own environment and know all the escape routes and as a prey animal their senses are finely tuned to escape hunters ... we cheat by adding light into the equation and can at times manipulate the situation but on the whole I think it's fairly fair with the odds 60/40 to the dogs advantage ......