For me, my landscape is so full of seeds, flowers and natural food, that my feathered friends are content with what nature supplies. However, as the summer days start to fade away, the need for supplemental food starts to become necessary, unless you have a lot of fall berrying plants in your gardens.
As you may know, I have a birding area in my landscape that is always filled with excitement and flurry. Why? Because I have a "Birding Tree" that is filled with birdfeeders. I've found that having several types of feeders works well in my situation as there's never any feathers flying during a fight to the perch. Each feeder is filled with different type of seed and even meal worms which is like the icing on the cake to some.
I've also provided birdhouses in this same area to encourage nesting. I've found it important though to clean them out once the nest is empty so that the next visitor comes home to a clean house.
Speaking of cleaning, if you live in NJ, you have clearly recognized the importance of keeping your feeders clean as well with all the rain and humidity we've experienced lately which will quickly turn your seed into growing mediums.
Recently, I found a wonderful website that has a vast selection of feeders and houses fit for any type of birding enthusiast.
You can visit them at http://www.backyardchirper.com/
What types of birds are you seeing in your gardens these days?