Sunny day makes for nine lively fiends

Why is it that the sun makes my budgies ten times more lively and boisterous than they normally would be? I guess it's a good thing, it means that they feel energetic and happy!

They had some carrot, baby corn and mange tout which especially Snowy seemed to really enjoy, he has the equivalent of a sweet tooth, I suppose that would be a "sweet beak" and loves carrot.

Monty has been berating the poor very moulty green Jerry, as usual!

Here are pics..