In reply to Russell Lovett:
Lock Muick - Some deer in the fields at the head of the loch & glas allt shiel half way down.
Glen Cova is to the south and can different weather to north Cairngorms, also the walk to corrie fee is nice, through the woods. (but of a drive though!)
Rothiemurchus forest also has some Highland cattle somewhere close by, Loch an Eilean is also a nice low level walk with an old building/ ruin in the loch. It has hills surrounding and stays clear on a cloudy day (it is what we did!)
Glen Feshie Hostel - Walks around the woods
Loch Garten is lovely, you can see the mountains across the loch from there. There's also an osprey center near there, I assume you'll get some wildlife photos.