My older daughter is a budding ornithologist. She absolutely loves birds. Binoculars in hand, she is often seen observing the birds at our feeder and is ready with many bird facts if only you ask.
Therefore, we study birds for science.
I came upon a neat site that has all kinds of bird-related information. 50 Birds has information on birds, information on feeding birds, birdhouse building plans, t-shirts, coloring pages, and other information to browse and learn from - a great site to bookmark for a study on birds.