Nesting Thrush

[jacey]

A thrush has built a nest on the windowledge of our neighbour's house which overlooks our yard. (It's a barn conversion.) Since it's a frosted glass window (non opening) they probably haven't even noticed. Mrs Thrush is sitting on the nest and Mr Thrush is spending a lot of time on the ridge of our barn, keeping watch.

Since it's nesting on a windowledge I'm presuming it should be a mistle thrush but when I listen to the mp3s of British birds oin the web it sounds more like a song thrush. Anyone know how to tell the difference?