Bluetit Diary 2002 - June


The calm before the storm.

Saturday 1st June

This is the day we think could be departure day.  Malcolm put a timer switch on the camera, and set the video recorder, in case they did a dawn break, but they are still with us at noon.  The birds are very restless, with lots of preening activity and occasional bouts of violent wing flapping.  It’s a beautiful day – quite breezy, but with a clear blue sky and  bright sunshine – just right for a maiden flight (apart from the fact that 2 magpies have been seen in the garden on several occasions).  One chick actually hopped up to the hole, staying there for a few seconds, before scuttling back, and retreating firmly into the nest cup, apparently overcome by his daring.  Another chick picked a small piece of dried moss from the nest, and held it in its beak for a while – a comfort blanket?


Beauty brings the rations.
The activity increases – at one time 6 chicks were all preening violently, and occasionally a little face could be seen underneath them, in the nest cup.  This sort of behaviour was seen last year.  Then the activity in the box increased from about 3pm, the first bird left at 5pm – and it was all over by 5.30pm.

Chicks everywhere!

This year it is a different story.  One chick went up to the hole, and was looking out when a parent came, and fed the chick at the hole.  Another time, a parent pushed past a chick to feed the others.  Shortly after this was written, a chick went up to the hole, looked out for a while – and much to our, and its(?), surprise, flew.  This was at 12.25pm.  This must have been the bird we called Boss yesterday.  He was so much more self confident and aggressive than the rest.  We thought the others would follow quickly, but at 5 past 1 they were still in the box.

It is now 20 to 5 in the afternoon, and still we are waiting.  The chicks alternate between periods of rest, when they cuddle close together in the nest cup, and bouts of frenzied preening, wing stretching and occasional violent wing flapping.  The parents are continuing to supply plenty of food, assisted some of the time by our offerings from the mealworm feeder.


Where have they gone?

Finally, at a quarter to 6 a second chick left the box.  


No - you go next!

Unusually, we saw it fly away from the box and cling clumsily to a branch just outside.  A few minutes later it was off again and vanished among the foliage.  We had thought it would be too late, and that they would all stay another night.  Now at 7pm, it does look as though the last 5 will stay.  Here they can be seen huddled together near the front wall of the box.


Is this the way out?......
Here they are considering a possible return to the safety of the nest cup.

...and then there were four.
Having assumed that was it for the night, we set about getting something to eat.  A great mistake as we missed seeing the third one depart.  It must have been about 5 to 8 – will any more go?  A parent is certainly still trying to coax them out.

 

So these four will presumably stay one more night in the box.  We will set the recorder to start first thing in the morning and hope that we record them even if we are not awake to see them!


Sunday 2nd June

As expected, Beauty's remaining four chicks flew first thing this morning.  Unfortunately, owing to a switch being left in the wrong position, the VCR did not record their going and when we got up at a civilised hour, there was nothing to see but an empty nest.

So here's a picture of Battler with her ever hungry chicks.  They are growing fast and will be gone within the week.  Lets hope they get a good start to life outside the nest with some warm, dry weather!


MORE!
Having now watched Battler's chicks for most of the day, it appears that they are much noisier that Beauty's chicks.  Whether they really are hungrier or merely appear so makes no difference to their continual racket!  We were worried that perhaps they were getting neglected, but during the early part of the day at least, they were fed pretty frequently.  The frequency that they were fed tended to drop off towards the end of the day - perhaps Battler and Victor were tired!

Please come back soon!
On Wednesday 28th May, we mentioned that these chicks would sometimes become inattentive when one of their parents was playing games with the grub that had been brought into the nest - sometimes appearing to offer it to one chick, before removing it and offering it to another.  This would lead to a gruff "chirrup, chirrup" from Victor to wake them up again.  No longer.  The chicks look as though they could eat their parent bird when it comes into the nest, and if it doesn't leave food for them all - an impossibility - they are still yelling for it even when the parent has gone.

Surely some food will come soon?
And when she has been gone for more that 30 seconds they peer our of the nest box hole looking for her to reappear!

At last, they haven't forgotten us!
But the look they give when food arrives....

That wasn't much!
....isn't much different from the one they give when the food bearer departs!

Just give us the food!!!
As you can tell from our comments, we think these chicks have but one thought on their minds - FOOD!

Just five days to go now.


We're STILL hungry!

Monday 3rd June

At the start of the day, it was the same story, the chicks all crying out for food.  


That's more like it.
But now, Battler and Victor have discovered the mealworms in the dish on the dustbin – it’s only 7 or 8 metres along the passageway at the side of the house.  

Not another one?
They have been running a regular shuttle service, and now the chicks are well and truly satisfied.  Yesterday we were concerned that they were not getting enough food, because they seemed really desperate to be fed all the time, and often the food brought in was so tiny that we could not see what it was.  Now the chicks are snuggled down peacefully in the nest cup, and when Victor brought in a mealworm he had to chirrup quite fiercely to persuade a chick to raise its head. 

We counted up later and found that in the half hour period from 9.10am, the parents brought food 43 times - that's once every 42 seconds.  Even these chicks' guts cannot continue to digest it at this rate.

Finally, they weren't even facing the hole any more - sleeping it off became the priority.

By the end of the day, it's business as usual - the insatiable appetites had returned.

The chicks became more active during the day.  They are occasionally leaving the nest cup, and one made a complete circuit round the edge, before ending in a corner and having a bout of violent wing flapping.  This is the first time this wing exercise has been seen, and there were one or two more sessions later.

At the end of the day Battler was desperately trying to brood her chicks.  Whether she managed to calm them down eventually will have to remain between them and her as we switched off and left them to it.


Tuesday 4th June

Life continues as before.  The chicks did not seem so hungry today.  Here they are at half past six in the evening looking almost contented.  Except for one chick, they are not even keeping an eye on the entrance hole!


The pictures today illustrate the differences between the  head feathers carried by male and female bluetits.  This is Victor just having fed the  chicks.  His top blue feathers are darker and more streaky than those of  females.  He also has a white band separating his head feathers from the navy blue collar around his neck.

This shows how different the female is.  Her head feathers are not as dark, they are more uniform in colour and there is no white band around the neck, the blue head feathers blend into the navy blue collar.
This shows them both side by side.  It is interesting how frequently Battler goes to the left and Victor to the right.  The differences in their head feathers are common to all the males and females that we have seen frequently at close quarters and learned to distinguish their sex from their behaviour in the nest.  Whether this is a difference only seen during the breeding season, or whether it is clear all the time is not apparent to us at this stage.

When last seen before turning the light off, Battler was roosting in the nest box but sitting largely on the side and not in the nest cup.


Victor bringing a mealworm.

 

Thursday 6th June

This morning, Malcolm took the ladder and looked inside box 1 where Beauty and Beau had raised their brood.  He was trying to settle the question of whether or not all eight of Beauty's eggs hatched.  

It was already clear that no remaining egg was visible to the camera and when he looked and felt inside the box it appeared that no egg was hidden in the nesting material either.  It seems probable, therefore, that the eighth egg hatched but the chick died at a fairly early stage.  This is also consistent with the fact that no egg has been seen during the 2½ weeks in which the chicks were growing before they fledged.  A similar thing happened last year when the hen laid 9 eggs but only 6 chicks flew.  However, there were only 2 eggs left in the nest so we presume a 7th egg hatched but the chick died at an early stage.

This year both boxes have had  a very irregular pattern of egg laying and hatching.  The amazing thing is that the chicks fledge so close together in time.


Victor appears to be doing all the work again.  If we could have brought you picture from yesterday you would have seen a very hard working, but very wet Victor struggling to find food for his chicks in appalling weather.

Here you can see that he doesn't even have to come fully into the box now,  the hungry chicks will come and meet him half way.


As this is probably the day before the chicks fly, it is not surprising that they frequently exercise their wings to get them ready for the big event.  We don't often catch them at it, but here is one picture of a chick flapping furiously.

At last Victor's hard work seems to be having an effect.  You can see that three of the chicks are not hungry enough to take notice of his entry.  Lets hope they are fit and well fed for their big day tomorrow!

Friday 7th June

Although we were expecting it, the departure of the first of Battler's chicks at about 9.20am today caught us by surprise.  We had the VCR on but were running the webcam so we do not have a computer record of its going.  Looking at the tape, it was working itself up to it for a little while before hand.  As well as hopping up and down, looking out of the hole and flapping its wings a lot, shortly before it went it hopped up onto the nest box hole several times and looked out for a while before retreating back inside.  Suddenly it was gone without our noticing at the time.

Of course, we thought that the rest would follow later today, but at the end of the day, they are all still with us.


These three pictures show the box from the outside for a change.  The first shows Victor going to his usual staging branch before flying into the nest box entrance hole.

This shows him emerging a few moments later.  This time he doesn't seem to be carrying a faecal sac - at least, you cannot see something white in his beak!

Here are the chicks looking subdued after their brother has left them.  Later on they perked up quite a bit and at one stage we thought that another chick was about to leave.  It too hopped onto the nest box entrance hole but it did not take the final plunge into the unknown.

During one of the chicks' more boisterous sessions, one of the un-hatched eggs was moved to the side of the nest.  Here you can clearly see it at the bottom of the picture.  It is difficult to realise that only 19 days ago these full sized bluetits emerged from such a small egg!

Saturday 8th June - the last morning

We have now had a chance to look at the video of the departure of the remaining four chicks.  We started recording at 5.30am and although there was a fair amount of messing about, nothing of note actually happened until nearly 6 o'clock.  The first two chicks left the nest at about 7.00am and the last chick was gone by 7.28am.

The picture on the left shows the four chicks begging for food from Victor.  It is interesting to note that the parents kept visiting and feeding the chicks remaining in the box until the last one had flown.


5.55am 

"What's he up to?  He keeps looking out of the box.  He's not going to disappear like Fred did is he?"

6.40am

"Now what's wrong with you lot?  Fred's doing fine.  Pull yourselves together and come outside!" says Battler.


6.46am

This is a picture from a rather interesting sequence.  Victor had brought in some food but seemed strangely reluctant to let go of it.  Several times, even when he actually let go, he grabbed it back again and offered it to another chick.  On one occasion, he appeared to leave the nest for about 10 seconds, still holding onto the food.

Eventually, he weakened and let go.  We could not see what it was.  It was fairly small, similar in length to a chick's beak, and was white in colour.  It must have been fairly robust physically as it took a fair amount of tugging.  Could it have been a piece of peanut?


6.58am

At last one of the chicks begins to realise that it is getting serious and starts to get some exercise!  The others appear to be hoping that this thing will go away if they ignore it.

Shortly after, at 7 o'clock, one chick went immediately followed by another

7.03am

These two birds were distraught after their brothers (or sisters) had left.  They clearly didn't want to go at all.


7.10am

They look as though they have made a pact.   "We're staying put and that's final!!"

This soon broke down and it became clear that one chick may have been frightened of leaving- but the other was terrified!

7.24am

One chick seems determined to hide - and the only place he could think of hiding was underneath his brother!  For some time, one chick kept following the other around trying to hide beneath him.

The last but one chick flew at 7.25am


7.27am

"Now look here lad....."

This was Victor's last visit.  It seemed to do the trick!


7.28am

The last shot of a chick (just) in the nest!

7.29am

That's it for this year!!

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