Well, I brought it inside and placed it in a box, cushioned with shredded paper and a soft towel to lay on. Placed a lid, after cutting slits in the box for air. It has been very cold and wet here the past few days , so placed the box near the vent for warmth.
This morning I checked on it, and it was in a sitting up position (like perched). Encouraging. So I took a medicine dropper and some sugar water and tried to feed it. It took a couple of drops. Then it started to flutter it's wings!
I quickly put the cover back, certainly didn't want a hummer flying throughout the house, and took the box out to the porch. Could hear the wings beating on the lid. Lifted the lid and voila, she/he flew off!
My good deed for the day! If I could work my camera and load pictures, I would have loved to show you how tiny and lovely it was. But I am a sad failure at tech things. Perhaps this is motivation to learn for any future "rescues".