House Decorations - Yep, believe it or not.  You can decorate for Christmas will branches of holly in your window boxes.  The berries will attract the birds.  You can also toss in bayberry and juniper branches.  You can hand a wreath in the fall made with sunflower heads, corn, shelled peanuts strung together, and sprigs of millet.  You can even decorate an evergreen with orange slices, garlands of peanuts or raisons, dounuts or bagels on strings, and little wreaths of raisons.
 

Composting - If you have a spot in your yard, and you are willing to make a compost pile, do it.  Not only will the compost make a great organic fertilizer, but it will also attract birds.  Compost piles are always full of earthworms and assorted bugs.  Wood thrushes, towheees, and thrashers will happily dig in the compost to find the tasty morsels residing in it.  The compost pile also provides great nesting material in the springs.
 

Dust Baths - while most birds prefer to bath their feathers in water, some prefer a dust bath!  Just like in a water bath, a bird will hunker down and lie belly down in a soft pile of dust and then ruffle their wings and waggle their tails to flick the dust through their feathers.  Dust bathing will keep feathers in shape just like a water bath does.  To make a dust bath, choose a sunny out of the way spot in your yard and strip off all grass or other vegetation in an small section.  Rake and crumble the soil into a fine powder, then scoop a few small hollow depressions.
 

Eggshells - when you are done cooking your morning breakfast of eggs, don't toss out the egg shells.  Crumple up the shells and toss them into a tray feeder or some other spot in your yard.  Egg shell provides a good source of calcium, and it is a important mineral supplement for egg laying females in the late winter and early spring.   Egg shells are also good for your garden since your plants need calcium too.  So feel free to toss the eggs shells directly in your garden beds, or on the compost pile.
 

Mud bath - a mud puddle can be an inviting spot for birds.  Many birds will come for the mud for nesting purposes, I've even seem some birds wallow in the mud.  I inadvertantly found out how much birds like the mud.  I had put in a vegetable garden, and off to one side was a depression in the ground.  When I watered the vegetable garden, the depression would fill up with water.  When I was caring for a friends puppy, he saw the mud puddle, and while I wasn't looking decided to dig in the water, and then roll in it.  He ended up making quite the mud puddle.  Then the birds came for the mud!  And birds will come a long way for mud to build or maintain their nests, especially if rain has been scarces.  If you want to make a mud puddle, dig a depression at least 2 feet in diameter.  Don't make the depression any deeper than 4 inches.  Soak the depression thoroughly with water, then dig in the water fill depression with claw type cultivating tool.  Scrape the bottom and the sides until you've made mud about the consistancy that you would if you wanted to make mud pies.  Maintain the mud puddle through out the summer for birds who nest more than once or later in the summer.  You can even beautify the mud puddle by planting bird attracting flowers or plants around the edges that like a moister growing area like cardinal flower, jewelweek, rushes, and blue lobelia.

 
Nesting material - in the spring, scatter white string, scraps of yarn, white feathers, and other soft materials in your yard or draped over tree and shrub branches.