Starting at Adam Timpf's place, I checked his well-stocked feeders and came up with several overwintering birds, including a flock of blackbirds: 5 Red-winged, 2 Rusty and a group of 20 BH Cowbirds. In addition, my FOY Song and White-throated and a somewhat unexpected Field (I didn't think I'd get it).
Making my way south to the lakeshore I came across a male N. Harrier and several large flocks of sparrows. In Port Royal, right at the birdge with Big Creek I had 2 excellent finds: a Hermit Thrush 'chucking' away and a curious Gray Catbird!
From here, heading east I had the large, wintering flock of Sandhill Cranes (~120), east of Port Royal. Near Fisher's Glen I came across more White-throat's and a nice Fox Sparrow along the road shoulder.
Continuing east, I didn't have too much else, especially with the wind picking up, but did come across a nice Northern Flicker (I like seeing these guys in winter) and several Rough-legged Hawks.
All in all, I had a decent total for January 1st of 49 species.