If you have a window in your classroom set up an observatory next to it. Place binoculars and bird books next to the window so that your students can view real birds. See if you can see any of the birds from the books.
Also add a Bird Feeder outside the window to attract the birds:
Bird Feeder Submitted by Tonya
Use Either Stale Bread or a Corn Cob as a base. Spread Peanut Butter all over the base. Then press bird seeds into the peanut butter and viola! you have a nifty bird feeder.