That would depend on the place. While there weren't firearms, people were using a lot of traps. At the same time, the crops on the fields in Europe mostly didn't provide this much nutrition to wild animals as they do today (sugar beet, oilseed rape) which has for example lead to overpopulation of wild boars recently.
There would be probably more wildlife in places with low human density of population (generally in forests further uphills). In these places, however, there would be also more predators which would cull down the prey.
In general, I don't think there would be large difference in number of animals, only in number of species.
Bears would be more likely further from towns and villages, wolves would be impossible to spot unless you would spend days actively searching for them.