We have returned from the Isles of Scilly to find the meadows bathed in a brilliant white. In all the years we have been here, there has never been such a magnificent show of oxeye daisies:

Perhaps some might think that this concentration of these large plants will be swamping other things out, but these are beautiful native plants and are offering up an immense amount of pollen, so it’s difficult to be too cross with them.

We set out to discover what invertebrates are making use of this completely overwhelming number of flowers:

Painted lady butterflies certainly seem to love them. These butterflies are long-distance migrants, starting out from North Africa and the Middle East in the early spring each year. From there they spread across Europe in a multi-generational migration, since each individual only lives a few weeks, and they arrive in Britain from May onwards. In the autumn they start heading south again and return to their starting point, completing a 9,000 mile circuit. Lots of them have arrived in the meadows already and can be seen dancing amongst the daisies:

All sorts of beetle gorge on the vast amount of pollen produced by the flowers:

We also saw swollen-thighed beetles (Oedemera nobilis), malachite beetles (Malachius bipustulatus) and lots of tiny beetles that are so minuscule and covered in pollen that I feel I have no chance of identifying them:

But what we will remember most about this enjoyable search amongst the daisies are the spiders. The common crab spider, Xysticus cristata, is an ambush predator that waits for something to land on the flower and then pounces on it.

It was only when I loaded this photo onto my computer and had a proper look at it that I saw that her prey was another spider. In fact, it is actually a male of the same species that she is eating:

I don’t know whether he had just mated with her and no longer served any purpose other than as a meal, or perhaps he had tried to court her but she wasn’t impressed. Either way it did not end well for him. This spring I have been trying to understand spiders a bit more so that I can get to like them, but they don’t do themselves any favours with this sort of behaviour.

This is another spider that lies in wait for visitors to the flower. She stays stock still with her long legs spread out and ready for immediate action:

Below is the male of the species, smaller and with brown markings but with the same really long first pair of legs:

I had never seen this next spider before but I knew what it was the instant I spotted it. It’s the cricket bat spider (Mangora acalypha):

I really enjoyed this week’s oxeye daisy project, although I now have the yellow and white flowers imprinted on my retinas.

It was pleasing to get a photo of this furry hoverfly in the meadows this week. He’s trying really hard to look like a white-tailed bumblebee, but he plopped himself down onto this leaf in a most un-bee like manner which is what caught my attention. He also has big fly-eyes, only a single set of wings and short, wispy antennae:

This is the bumblebee mimic hoverfly, Volucella bombylans (var plumata), and he is imitating a stinging white-tailed bumblebee to avoid bird predation. The female hoverfly also uses this disguise to trick her way into a bumblebee nest to lay her eggs, although she will also use social wasp nests. The hoverfly larvae then live off the detritus at the bottom of the nest, as well as occasionally also eating the bee or wasp larvae.

Our precious colony of small blue butterflies has now emerged and there is a lot of kidney vetch around to support them this summer:

Mating small heaths using a daisy as their platform:

The 22-spot ladybird is also very small at only 3-5mm and it eats the mildew on a variety of plants:

While we were away we had an unusual visitor to the meadows:

As the bird flew off the perch, you can also make out its red trousers:

Here is a much better photo of the bird from Wiki Commons:

This bird will probably have migrated back to the UK along with the swifts, using them as a mobile larder. Now that it has arrived back in the UK, it will switch from eating swifts to acrobatically catching dragonflies midair in its claws.

I am pleased to say that the three swifts that we were expecting back have avoided the attentions of the hobby and all have arrived in their boxes.

I have numbered to boxes that we now have up on the side of the house in the photo below:

Box 3 is the most successful with four young swifts fledging from it over the last couple of years. But last summer there was unfortunately only a single parent bringing them up. This bird arrived back in the box on 8th May this year:

Having arrived, the swift then disappeared for a few days, returned for a night, went off for another few days and then, overnight on on 20th May, there were two of them:

But my celebration was short lived because that was just for one night. We are now back to there being just one swift in the box each night. The bird has removed all the old bedding and the box is now bare. Some of the ejected nest material has got caught on spider webbing in front of the camera and created the white splodge.

There wasn’t a camera in box 5 last year but we know that the pair of swifts had claimed it and were roosting in there every night. Over the winter, when the birds were away, Dave installed a camera in the box and we can now see that both birds have successfully returned:

The hobby timed its arrival perfectly because dragonflies are now emerging from the ponds:

There are also lots of damselflies around the ponds but I shouldn’t imagine a hobby would bother with these:

It has been so very dry which are difficult conditions for the badgers who are trying to eat worms. Nevertheless, they are doing what they can.

A little foraging group out and about, cub leading the way:

The remains of a bumblebee nest that they dug out one night to get at the grubs:

Over in the wood, the owl excitement is over for another year and all four tawny owl chicks fledged on 11th May. Earlier on that day, the adult seemed to be encouraging them out of the box:

Then, at around 4pm, one of the chicks launched itself from the box and can be seen in the bottom right below:

Most unfortunately, the main camera looking at the box wasn’t in quite the right position and this is the best it managed of this exciting event:

Again around 4pm, another of the chicks scrabbled up the tree. It would have then hidden itself further up while the parents continued to bring it food.

But after 4pm on 11th there has been minimal activity at the box, indicating that all the chicks left around the same time. So that’s it for another year, but I do so hope they choose to nest there again next year.

We were very pleased with how many tadpoles were wriggling around in the pond in the marjoram clearing. However, we weren’t the only ones to notice them. Unfortunately a pair of crows have systematically fished them all out and we can no longer see any at all.

I finish today with a little group of four great tits that I presume have recently fledged. John the bird ringer has been on a mission this spring to ring all the baby blue tits and great tits that are being raised in the bird and dormice boxes. This project has just finished with a total of 117 blue tit and 20 great tit chicks being ringed.

When he puts his nets up later in the year it will be really interesting to see what percentage of the tits being caught fledged from the boxes this spring.