Great Tit

Today we went to my parents. It was my dad's birthday (72).
My parents are living in Scheemda, provence of Groningen(in the North-East part of the Netherlands). They live in an apartmentbuilding on the 3e floor.
On their balcony they have a nestbox special made for tits. Since it's Spring my mom and dad were hoping they would get a breadingcouple in the nestbox.
Well now there is a couple of great tits very busy making a nest. I couldn't choose which of the 2 pictures was my favorite. But since you can see the whole bird I thougt this one would be perfect.

It's a bit hazy in large because I had to take the picture through the window.