The variety of birds in the Braemar area is limited at that time of year, but the quality can be good if you are lucky.
The native pinewoods of Glen Quoich and Glen Lui to the west are worth a visit but can be quiet at this time of year and involve a fair bit of walking. However, all three Crossbill species may be found in the area and Black Grouse may be found in the open areas as well as up Glen Dee beyond the Linn of Dee . Glen Clunie to the south (along the A93) is good for Red Grouse and if you are a hillwalker (and the weather is not too bad), Ptarmigan can be found on the higher hills at the south end of this Glen (near the ski area). Snow Buntings can sometimes be seen at close quarters in the ski centre carpark. Golden Eagles may be found anywhere in the glens around Braemar although luck is required.
If you are able to travel further afield, the Dinnet area (around Loch Kinord and Loch Davan) between Ballater and Aboyne is worth a visit for woodland and waterbirds. There has been a Great Grey Shrike in this area this winter too.