Tit In The Box

For several days this week, usually quite early in the mornings, I have been observing a delightful little blue tit flying into our nest-box in the garden. He tentatively flies in; pokes his head in and out for a moment; and then flies out, clings to the opening and pecks at it.

This is common enough behaviour in the spring months; hardly at the tail-end of October, though.

Could he be finding this unseasonal, mild weather somewhat confusing?