I don't know where its parents are, or they could be not around, it's not my house but I'm concerned because well I've got a soft spot for young animals soooo that's why I joined.
Just leave it? It's been squeaking for two days now day and night day and night and yeah
2013 photos & vids here
eff37 on Flickr
Are you absolutely certain it's not being fed & are you able to get to it?
Have a look here to find a rescue centre in your area & ask for advice ... helpwildlife.co.uk/.../
Unicum arbustum haud alit duos erithacos
(One bush does not shelter two Robins)
Zenodotus (3rd Century B.C.)