I have three good answers already to my original question and the sparrow I am trying to save is now eating fresh seed (I dropped water into it's mouth and then some diluted chicken cat food). I sprayed his eyes with water and he's opening them more, too, and fluffing his feathers. He was so weak last night, lying still on the towel I put in his box. Today he is up and moving around, is now eating and drinking and pooping, but has not yet tried to fly out of the box and there's currently no lid on it. He's staying in there. At what point do I take him outside in the box, open the lid and let him free again? It is 70 degrees in the house and only in the 50s outdoors. Oh, and thanks for everyone's help in saving this little bird!