Happily Empty Nested

For the last few weeks I have been observing a family of swifts as they nested in a box attached to the side of the house. The pair of adults arrived back from Africa on 5th May and spent some time settling in and recovering before laying two eggs on 22nd and 24th May. These then hatched on 11th June, just as we were going in holiday. On our return, however, we found that there had been a major hiccup and there was only one adult left bringing up the young.

Even with only a single parent bringing back food, both chicks seemed to thrive – after all, the weather was very agreeable and lots of insects were about

One chick did seem to be larger than the other, though, and on 20th July this one spent the day flapping its wings and readying itself to leave:

A chick preparing for its maiden flight while the smaller one looked on

By the evening of the 20th the bigger chick had launched itself out into the big wide world, leaving its sibling alone in the box for the very first time. The parent returned from its foraging to spend that night with its remaining chick:

The parent and the remaining chick in the box overnight following the first fledging

The parent went off again the next morning and the chick spent 21st July on its own, peering anxiously out of the hole:

Last year both chicks had fledged within a day of each other, so I was expecting the second chick to soon be on its way. But it resolutely stayed in the box.

I started to worry about it and was frequently checking the camera. My concern increased significantly when the parent failed to return to the box in the evening and the chick spent the second night after its sibling fledged alone:

Whenever I woke in the night I immediately checked the box. Three o’clock in the morning here and the chick was still on its own. When was it last fed? Had something tragic happened to its parent? It was beginning to feel like I had a front row seat at a disaster movie

Throughout the next day there was no further sign of the parent, however often I looked at the camera, and I spent the day agitated and with a feeling of helplessness. Therefore, it was with immense relief that I saw that the parent had eventually returned towards dusk and spent the third night after the fledging back in the box with its chick:

The young bird remains quite small compared to its parent. I also note how spotless the inside of the nest box is

Still the young bird stayed in the box and the parent then spent the fourth night post-fledging with its remaining offspring.

Now we have reached the 24th July in the story, four days after the first chick fledged. At 6.30am the parent bird and its chick are staring out of the hole together and I imagine the young bird getting a pep talk to give it the confidence to launch itself into the rest of its life:

And then they were finally off! When I next checked the box half an hour later, they had both gone and it was empty:

As happened last year, the adult returned for one more night – which was last night – on its own in the box and I believe that our swift year has now come to an end.

All that remains to show that it ever happened is a beautifully tidy, feathery nest in the box and a pile of the chicks’ faecal sacks taken out of the box by the parent and then immediately dropped onto the flat roof below:

These droppings will be washed away by the winter rains in due course
Some birds are still to be seen circling the wildlife tower on the garage, where we are playing swift calls. But the UK swifts will very shortly be leaving now and we will switch the calls off

Perhaps the lengthy four day delay in the fledging of the second chick was because the good weather broke after the first chick left. We have had several episodes of thunderous rain over the last few days, turning the dog into a shaking, panting wreck hiding under the table.

Rain hammering down onto the meadows

Having had such a dry, hot first half of the summer I had been concerned about the water levels in the ponds but they are probably alright now – still low for sure, but no longer in danger of drying out:

The badgers must be pleased with all this rain, bringing the worms that should be 70% of their diet up to the surface of the soil:

But the bees definitely prefer the sunshine:

A disconsolate bee draped over a ripening sloe, waiting for the sun to come back out

It does look like the fruit trees in the orchard liked all that heat as well, and both the apple and the pear trees are heavily laden. There is going to be a bumper harvest later this summer and I currently don’t have the freezer space for it:

One autumn a few years ago the foxes helped us out with this potential problem by climbing into the pear trees and eating the fruit themselves:

Foxes are very partial to pears we’ve discovered

They also like rabbit and here is a fox this week launching itself at one:

As the summer draws to a close, the badgers will start making their quarters winter-ready by dragging multiple loads of dry vegetation backwards into their sett. But, for now, this badger decided that just one small mouthful was what it needed:

Never have I seen such fluffy crow. I presume that this must be one of the young ones:

And this one too – that tutu looks ridiculous:

A sparrowhawk starts to peck at its small bird prey as one of the magpies, the self-appointed policemen of the meadows, looks on:

Lovely to continue to see barn owls back once more in the meadows:

Two or three weeks ago we heard a turtle dove purring in a holm oak down by the wild pond and I put a couple of extra cameras out to see if it would come down to the water. Unfortunately we haven’t seen the turtle dove but one of the cameras has captured a much bigger bird instead:

This is the first time a buzzard has been seen in the meadows for ages. This was the only camera it appeared on
Hopefully it will return soon and stay for longer

I have had some time this week to skip out into the meadows with my macro camera and catch up with what the invertebrates are up to out there.

I was amazed by this thing, especially when I saw those big eyes and realised that it was a fly:

Its hind legs were temporarily caught on some spider webbing which gave me an opportunity to get some detailed photos. It certainly does have really long back legs

This is the conopid fly Conops quadrifasciatus ( the four-banded bee grabber) and I’m afraid to say that it has a bit of a gruesome but interesting lifecycle. This is a female fly and she will lay her eggs directly into the abdominal cavities of adult bumblebees, especially the red-tailed bumblebee, Bombus lapidarius. The bees are usually intercepted in flight, with the conopid grabbing the bee with its long legs and wrestling with it while they fall to the ground. The odd shape of the end of the fly’s abdomen allows her to prise apart the abdominal segments of the bee allowing an egg to be inserted.

Once the egg hatches, the fly larva eats the bee from the inside, eventually killing it. But before the bee dies, the conopid larva within causes the bee to dig itself down into the soil. The fly then pupates underground where it is protected from the weather and predation. After overwintering, the adult conopid hatches from the pupa and digs its way up to the surface.

There are a lot of red-tailed bumblebees, the favoured host of this four-banded bee-grabber, in the meadows at the moment:

This is a male red-tailed bumblebee

As well as the fascinating conopid fly, I also found two species of Cerceris digger wasps:

This is the ornate tailed digger wasp, Cerceris rybyensis, which specialises in hunting small to medium bees. They normally attack the bees as they return to their nest loaded with pollen – the bees are returning to a fixed point and the pollen load makes them less able to avoid the wasp. The wasp stings the bee to paralyse it and then uses it to provision its own underground nest. Five or six bees are dragged into each cell of the wasp’s nest, still alive but unable to move. An egg is then laid in the cell and the wasp larva feeds on the bees as it develops
This is a different Cerceris species, possibly the sand tailed digger wasp, Cerceris arenaria, which hunts weevils rather then bees, but the photo is not sufficiently good for an ID

This tiny gall fly, Urophora quadrifasciata, is only 2-3mm long but has wonderfully marked wings:

The female fly causes galls to form on knapweed within which her larvae develop

There is a lot of dragonfly and damselfly action down at the ponds at the moment. Here is a male emperor, the UK’s largest dragonfly:

And here is a female emperor laying her eggs into the water:

I had another good haul of moths when I ran the trap this week, including some absolute beauties. The plumed fan-foot with his wonderful antennae on the left below was a new moth for me and I am very fond of the rosy footmen and magpie moths on the right.

I also haven’t seen a bee moth before:

These rather drab-looking moths lay their eggs in bumblebee nests and their larvae initially live off the detritus in the nest, moving onto the bee larvae themselves as they get bigger. They also spin webs within the bee nest to protect themselves from the bees and this often leads to the eventual destruction of the bee nest. It seems so many things target hard-working bees who are just trying to get on with things on their own

It has been a wonderful year for six-spot burnet moths:

And there are a lot of butterflies around as well:

A mating pair of gatekeepers

Butterfly Conservation’s The Big Butterfly Count is on at the moment and I am hoping that they will discover that it has been a good year for butterflies in general because they could definitely do with some better news.

We were hoping to find some families of dormice in July’s tour round the boxes in the wood. But, although we did find five solitary dormice and six additional empty dormouse nests in the fifty nest boxes, none of them had been used for breeding.

This juvenile dormouse, weighing just 10g, was on her own in box 25. An adult dormouse will typically weigh 18- 25g, although can be up to 40g when they are putting on weight for hibernation. We found two juveniles like this and are taking it as evidence that, although the boxes aren’t being used, dormice are definitely breeding in the wood. Perhaps it has just been too hot to use the boxes
The lid of box 3 was stuck down with dense spider webbing. Inside was a labyrinth spider, Angelena labyrinthica. These very large spiders usually build big funnel webs to catch prey in low vegetation. But, when it is time for the female to produce her egg sac, she will create a labyrinth of very dense web to protect the eggs. Unfortunately she sometimes chooses to do this in a dormouse nest box

The marjoram in the large clearing in the wood is out in full flower now and is thronging with life. As we walked through it, a silver-washed fritillary glided across in front of us and stopped us in our tracks:

This is a very large and very beautiful butterfly. She was about 8cm across and in tiptop condition
The ‘silver-washed’ in the name comes from the markings on the underside of the wing
I also like her spotty eye

One beautiful summer evening we went for a late dog walk at Sandwich Bay. I was very charmed by a small family who crossed the road in front of us:

The mother pheasant goes across the road followed by her three small chicks:

I am not aware of pheasants being released into the countryside for shooting in our area and believe that these birds are part of a wild population. They were so very sweet as they anxiously tried to keep up with her:

I think these little chicks are sure to bring a smile to anyone’s face and to brighten up the worst of days.

2 thoughts on “Happily Empty Nested

  1. I am very pleased that the swift family survived. Sounds like it was an anxious time for you though. The crow in a tutu made me smile as well as the pheasants tiny offspring.

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