Great tit.
Yep, that's right.
Lot to learn
A female great tit if I'm not mistaken
Kimberley Griffiths
I didn't know there was any difference between male and female! (But I am not known for birdie expertise!)
IMAGICAT
Nor me I think the female has a thin black stripe down the front whereas the male has a strip that widens as it goes down the belly.