The noodle in the nest made me burst out laughing! I was wondering what kind of bird that was supposed to be! 
A very easy diet for baby birds is soaked hard dog food. I've had excellent luck with this diet for baby birds and it is easy to make, easy to get, easy to feed, and easy to store. Simply take a small handful of hard dog food, put it in a plastic tupperware container, put enough water just to cover the dog food and let soak. I make a new batch every day or every other day depending on how hot it is and how much I need. Keep the food in the fridge and let it warm to room temp before feeding. Since the dog food is soaked in water, it will keep them hydrated and the dog food has plenty of protein in it.
Also, I recommend keeping them on a heat pad set on low instead of a heat lamp because the heat lamp can burn them. I usually keep my babies in a plastic critter keeper with the heat pad underneath and paper towels made into a little nest. Makes for very easy cleanup.
You are lucky you have more than one! Releasing a single hand raised baby into the wild can be difficult, but when you have more than one it is actually quite easy. Just let me know if you want more info on releasing.
Yes, it may be illegal, but I know I would have a difficult time letting a nest be thrown out!
Good luck with them! The tiny babies can be difficult, but it's certainly not impossible.