What is this Bird??

  Sorry for the rubbish picture but it was a dark dreary morning when I spotted this in a tree behind my garden.

Please tell me it's a Song Thrush and not a female Blackbird haha! Or is it something completely different. Can anybody help please? There was two of them in the tree.

I'm new to bird watching and photography so please excuse what might seem obvious questions to you all. Kind Regards.