I recently added three birdfeeders to my small yard in central NJ. It has been fun to see new birds arrive to feast. I find the starlings who fight for the suet cakes the most interesting to watch. I have been lucky enough to see the fledglings arrive at the suet with their parents and/or other adults. The adults can be quite aggressive toward the fledglings - I assume not their own young. The blue jay who comes occasionally is also very aggressive.
We've had three types of woodpecker and one flicker. All birds that I had never seen growing up in the cities of NJ.