I think there are a few things that attract all the wildlife to my yard.
First, there's been no construction in the neighborhood for about 20 years. Birds and wildlife have either lived here continuously or have a memory and return here annually to nest.
Secondly, in my neighborhood many people, and all those adjacent to me, plant trees on the property lines. People tend to use the middle of their lawns when outside thus making the animals feel more secure at the edges. This also means that the birds swoop across the lawn before landing on either side, making them easier to spot. The power lines on the front of my property attract the mourning doves for some reason, too. This allows the squirrels to make a nearly complete circuit of my yard while never leaving the ground.
Third, I and my neighbors have a huge variety of trees available, so there's something for every birdy. There are very tall white pines, more bushy-like Leland cypress (still tall), short bushes, maples with large leafy canopies and my pear tree which provides food, and when the pears rot, attracts butterflies.
Tiki, as you're there longer, I imagine more feathery friends will show up. I have a bird feeder, too, but I don't think it's the main draw, although small birds seem to like it a lot. Once the birds learn that you have a nice yard, they'll invite their friends to your neighborhood. :)