Young Ones

A fledgling House Sparrow on the right, but not sure what's on the left - is it a fledgling Greenfinch? There are quite a few young birds landing and feeding at the table these days. There's another one which looks like the young Greenfinch but it has the markings of the Greenfinches belly all over it and just brown wings with no yellow. Not sure what it is, maybe just a younger bird.

On a sadder note, due to my complete incompetence and being in a rush, I managed to clean out the paddling pool for the ducks and totally forgot to put the stones back in so the ducklings could get out, thus 4 of them drowned. Feel absolutely awful.