but this winter has been very mild. Would this effect thier movement making them more or less active?
No. It doesn't seem too.
My best guess. Along the edges of either. Watch for rabbit runs. See allot of their tracks crossing in and about a small area. Pretty good guess there's one in the local. They seem to be more active in the last couple hours of day light from what I've seen. Although their out and about all day long. If they've seen or feel threatened by (hawk, owl, or fox). They'll stay in the heavy bush for awhile afterwards. Their a fickle little animal. They can be just about anywhere really. Take your time hunt slow. Don't watch your feet. Concentrate on the brush on all 3 sides of you instead. You'll see em. Hunting with a pooch is a little bit different. Dog does all the seeing and foot work.