Posted at 7.00pm

If you've been watching the WebCam, there have been moments this afternoon when you just don't know what will happen next.

Continued good weather with a high of 26.2°C hasn't tempted a single Blue Tit to leave the box, although some look more ready by the hour.

In some respects this is good, as the parents are possibly heading for a dilemma when fledging starts.

Given that tomorrow will be the 20th day for chick number one, it is very possible that the three eldest will leave tomorrow. What happens with number 4 is anybody's guess, and it could face life alone in the box for a day, possibly two.

Blue Tit chicks are still heavily dependant on their parents after fledging, and mum and dad will have their work cut out for them feeding the youngsters up in the trees. Let's just hope that they also remember to keep an eye out if one gets left behind.

If number 4 faces solitary time, will it be left alone at night and will mum return to keep it warm?

The male has been absolutely fantastic today, and the female not so brilliant. She has been bringing in feeds, but the male outstripped her by about 10 to 1.

Between 12noon and 5.00pm a parent visited the box 92 times. That averages out to be 18.4 visits an hour or one every 3.24 minutes.

There have been many times when it looked as if one would go, but when food is around, the mind of a little one can be changed:

Parents have been battling past chicks which are hanging onto the hole, and in general it has been madness at times:

The fab four get a little lively here.

Scrambling for a Position
How one didn't go at 5.18pm we don't know, as they were almost queuing up to jockey for a position by the hole, one on top of each other.

In the past couple of seasons this has quite often been the point where one jumps for freedom.

The eldest also showed just how well those wings will work, very soon:

They jockey for position and number 4 talks to the camera.

Quieter Moments
There have of course been quieter spells, and all young things need to have a rest at times.

This was beautifully illustrated when the female made a rare visit inside the box and stayed a while.

Normally she just visited with food, but this time she took some tender time with her babies and looked as if she was preening them and checking their feathers:

She might not have fed them very often today, but mum cares.

So just like this one in the middle, we all wait to see how they decide to leave:

Tonight will definitely be the last time they all sleep together in the box ...