Yesterday this baby bird was sitting on the ground outside my studio door, then when I went outdoors it flew up into our Greengage tree. He/she seemed to have no fear of me, and I was able to return indoors, fetch my camera, and take several reasonably close-up shots.
I'm not sure if you can see (you'll have to enlarge the pix), but the poor thing seems to be blind in one eye. Its left eye was permanently closed, and the right one open.
I suppose these things happen in nature just as they do with humans.
The beautiful little bird is a Stonechat; quite a rarity hereabouts.