Add the Water
So, creating a backyard wildlife habitat is straightforward. Just plant those plants native creatures find irresistible — then add water. You can set a shallow dish near some cover (the easy route), install a pond (the high-maintenance but high-style way; click here for more details), or go the middle-of-the-road method and bring in a birdbath.

"The birdbath is an invitation," says Heidi. After the birds freshen up, they check out the other amenities. You have to stay on top of keeping the bath filled: Heidi says most species will snub a tub for weeks if it's empty even for a day. Lucky for her, Davis refills the birdbath daily — and he knows the ideal water depth is just a couple of inches, as birds are waders. Make sure your basin has a rough surface so the poor dears don't slip. If it's smooth, mess it up with sandpaper or stick on no-slip tub decals.

Step into Nature
This stepping stone path strings an inviting lane between the animal "cities" (for details on how to make a stepping stone, click here). Heidi planted low bushes near the path, which gave a welcome to the sparrows, finches, painted buntings, and mourning doves (all ground feeders). When Davis jounces down the path, "the doves don't even fly," says Heidi, "they just watch him pass." Ever since he was a toddler with bells tied to his shoes (so Heidi could track him), Davis, too, has watched them pass. "It's about being outside," says his mom. "It's about mental stimulation. Kids will retain a little, and let go of a lot."

For career day at his school, Davis planted vines with chrysalises in a terrarium so his classmates could witness the world he sees each day — and has held on to.