We live in town yet still are adjacent to woods, so we see a lot of wildlife in our yard. I recently started a blog at www.slugyard.com
about things that my kids and I see in the yard. My kids then help me research what we saw- and hopefully got a photo of- and then post it. We are learning a lot and others who read it are telling me how much they are learning as well.
My kids can now identify all sorts of insects, birds, and spiders. When they find something in the yard, they come and get me to take a picture for Slugyard. The other day my younger son called for me and said "Dad, I found a Western Blood-Red Ladybird Beetle!" He is 5. I think we are on the right track.