We had a mockingbird on the suet feeder today. I've heard blue jays a few more times and the ruby-throated kinglet is still coming around. Here's my list so far (for my own convenience I prefer to keep the whole list in one place.)

We ran out of sunflower seeds due to the greed of the squirrels. A male cardinal is trying to hang from the suet feeder. Good luck to him! His feet aren't made for that....

Northern Cardinals
Carolina Chickadees
Tufted Titmice
White Breasted Nuthatches
English Sparrows
Song Sparrows
White Throated Sparrows
Northern Juncos
Mourning Doves
Carolina Wrens
Downy Woodpeckers
Hairy (and Hairy-ette) Woodpeckers
Red Bellied Woodpeckers
American Crows
American Goldfinches
Pine Siskins (first time I've ever seen them here)
Ruby-Crowned Kinglet, on the suet feeder
Blue Jays
Northern Mockingbird