We found out more about birds in Carol Lerner’s Backyard Birds of Winter and from the Ohio Department of Natural Resources’ Birding in Ohio site.
Another great book for budding scientists is Citizen Scientists: Be a Part of Scientific Discovery From Your Own Backyard by Loree Griffin Burns, which has a different project for each season of the year (and includes birdwatching for winter.)
You can be a citizen scientist this weekend by participating in the Great Backyard Bird Count, February 15-18. It’s easy enough that kids can participate too — it’s free, fun, and you’ll be sharing your sightings with others around the world. Last year 17.4 million birds were counted!