Bad News !!!

I am fairly sure I saw our female caught and carried away by a larger bird earlier this evening. I saw a great tit hit a house window at the same time as a large bird (looked same size and colour as a pigeon but I cant believe that's what it was). I tried to get outside but by the time I did I saw two birds flying off, and I am sure 1 was carrying our female. :-( .Not Happy. Since then, over the last few hours we have had the odd visit by the male, but the visits are rare and the chicks are obviously blooming hungry when he gets here. It is really up in the air now how many will survive. The nights are still cold and the male wont be in the nest overnight with the chicks. Lets hope he can keep on top of them.....