from
http://birding.about.com/library/wee...20798cover.htm
"Here are some trees and shrubs that will provide cover, shelter, and nesting places for birds. Be sure to make sure that they are adapted for your location. Also check with your local nursery for other native plants that are specifically for your area.
Alders
Ash Trees
Azaleas
Bayberries
Berry thickets
Birches
Cedars
Cotoneasters
Cottonwoods
Crab Apples
Dogwoods
Elderberries
Firs
Hackberry trees
Hawthorns
Hemlocks
Hollies
Junipers
Larches
Lobelias
Maples
Mulberry trees
Oaks
Pines
Poplars
Rhododendrons
Spruce trees
Suguaro cactus
Sycamores
Sumacs
Viburnu,m
Wax Myrtles
Woodbines"