New Babies

Several months ago, Randy added an outside wall to our carport - probably I should say bikeport, but that sounds funny. We park our bikes under the carport, and he figured closing it in would help protect the bikes during bad weather, and it would also give us some more storage space, since he added shelves to the inside of that wall.
A few weeks later, he was changing out some parts on the bike, and left an empty box on the top of one of the shelves. Then one day, I was working in our living room and looked out the window onto the carport and noticed a bird was carrying twigs and leaves. As I watched, she went into the box, the box shook a bit, and then she popped back out. I kept watching over the next day or so, and she eventually finished the nest she was working on.
I've worried about the nest, because we have two cats who like to play in and around the bikes; one actually takes a nap on one of the shelves. At one point, we thought the nest had been abandoned, but when Randy picked the box up to throw it away, the bird came flying out of the box - I don't know who it startled more, Randy or the bird.
Then over the weekend, Randy picked up the box to see if it was still being used, and guess what he saw? Three little mouths open wide, waiting for lunch.
I'm still a bit nervous about the cats- they are champion hunters, and love to go after noisy little animals. But hopefully the mama bird is watching them, and the box itself is in a spot that would be hard for the cats to reach. I'm just going to trust that God will keep His hands on the babies until they can get out on their own.