What should i do. there was a nest on our porch and after afout a little under a month (april) the mom left. We are having funckey weather and its snowing. I did not touch the nest but we put it into a box in my house and but a towl over it then a heating pad on medium. I dont want them to die. What do i do. How do i take care of them. If they hatch what do i do. I know little to nothing about birds.