Ramblings in January

So I think I'm at the point in my year list where I need to decide how crazy I want to be about the listing this year and, more specifically, how crazy I want to be in the next few weeks.  I've gotten all the birds in my county that are to be expected at this time of year.  Now there are undoubtedly some more species that I could get if I go "all in."  A few of these species probably include the following:
-Swamp Sparrow
-Marsh Wren
-Ferruginous Hawk
-Northern Shrike
-Loggerhead Shrike
-Glaucous Gull
-Lesser Scaup
-Field Sparrow
-Virginia Rail
-Wilson's Snipe
-White-throated Sparrow
-Winter Wren
-Greater Prairie-Chicken
Now if I was a smart birder, I would pick the birds that I don't have as good of a shot at seeing later in the year (Ferruginous Hawk, Glaucous Gull, Northern Shrike, and Winter Wren).  There are a few problems with some of these species:
Glaucous Gull-The last few times I have been out to the lake, I have seen very few gulls.  Where did they go?  I need to check the landfill, but I don't think it's a landfill on the scale I'm used to.  I wouldn't be surprised if there aren't any gulls there.
Ferruginous Hawk-I have not found a reliable spot in Rooks where one is hanging out, so that means driving, driving, and more driving.  This goes for Northern Shrike, too, as I have not seen one for a number of weeks now.
Winter Wren-I think I have a good potential spot for this species, but my speaker has kind of been on the fritz lately, so my best chance of finding it (using the Winter Wren call or a screech-owl call) is shaky.