Just in case you didn't believe me that the birds have been visiting the inside of the nest box....
Ten minutes or so after the "Tail" video below, at about 09:30 this morning - look what happened next!
You'll note there are clear differences between the sexes at the moment. I'm not sure how permanent that will be, and I'm not sure (as yet) which is the male and which is the female.
I assume the bird with the cleaner, more pronounced cap is the male, and the bird with the slightly scrappier cap is the female - though I can't be 100% on that just yet. Male Blue Tits (its said) have bolder, brighter blue caps. Add to that the fact that a "swap-over" (very well documented Blue Tit behaviour) seems to be occurring in the video above. This is where the male will enter the box first (often) and as SOON as the female enters, the male is outta there...
If you really listen closely, after the female has joined the male in the box, (relatively near the end of the clip), she makes two harsh noises at him, (not at all sweet peeping noises), as if to tell him to get lost briefly. He imediately obliges.... the hen-pecked old devil.
You'll also note that a piece of wood shaving is passed out of the box. Normal behaviour there too. I'm not sure how much of the wood shavings will be left if and when and nest is started to be built.
This video, a little under 2 minutes will be the longest I'll EVER upload I think - its taken me virtually an HOUR to upload this!
Please enjoy though!
I'm over the moon!