Long Tailed Tit..

At least I think that is what it is.. can anyone help?? also could do with knowing if male,female or juvinile for my garden bird log book....
It was quite an overcast dull day and this has been my only image (1 of 2 of the same bird)
No. 2
I did see a robin but it flew off before i could get it and now it has got too dark..
thanks for all your lovely comments on yesterdays effort.... the lighting is so poor at the moment that it makes it very difficult....