Window Nesting Box. Watch what happens inside a bird's nest. You can see the birds, but they can't see you. We had one for the kids while they were growing up & it was such a great way to enjoy nature & help them learn about birds.
Offering nesting materials to birds is an easy way to attract birds to your yard in spring & a simple suet cage nester is an easy & inexpensive project that can let you offer those materials in an attractive and fun way.