30 Days Wild – Day 2

A much warmer night after a couple of sunny days and now there are more moths appearing in the trap. My highlight at home was a rather beautiful alder moth, the adult is fine and the caterpillar, if you can find one is magnificent, try a web search and see if you don’t agree.

Alder moth

Whilst alder moths are not that frequent in the trap, one of the commonest species is the light brocade and I caught several both in my garden and at Blashford Lakes. The name of this moth harks back to the Victorian days of mothing, when brocade would have been a familiar material.

Light brocade

One of the fascinations of Blashford Lakes is the wide variety of habitats within the reserve. There is a lot of water, both in the form of the lakes themselves and the small Dockens Water river, but also various pools and puddles of various levels of permanence. At the other extreme we have a lot of very dry, sandy habitats, almost all derived from the left-overs of the gravel industry. These dry habitats have lots of rare and interesting species, one I was shown today, that I had not previously seen is shepherd’s cress.

It is similar to the familiar shepherd’s purse, although I confess I do not seem to see that as frequently as I used to. A lot of these rare plants of the dry habitats are small and unprepossessing, they cannot compete with more vigorous species and thrive only in very nutrient poor habitats. An increasing and rather unreported problem is the increase in nutrients falling in rain, particularly nitrogen, which enriches the soil eliminating these specialists of nutrient poor places.

A muggy night ahead with the promise of lots more moths tomorrow, so long as we don’t get too much rain, I may have to get up early in the morning to check the traps.

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Back to Blashford

Last Monday I helped Bob put a couple of tern rafts out on Ivy Lake, something he had been hoping to do for a while but needed someone on site whilst he went out on the water. So when I say ‘help’, I do mean it in the loosest sense of the word as I kept an eye on him from the comfort of Ivy South hide.

The view from Ivy South hide – the spiders have moved in and the vegetation is taking over!

Luckily, two of the rafts were still on the edges of the lake, so they just needed moving out into position in the middle and securing in place. By the end of the day there were six common terns interested in one of the rafts and this number has gradually increased over the course of the week. In wandering down there today there were at least twenty either on the raft itself or flying around overhead, with a few black-headed gulls. We would usually put out more rafts but without volunteer support to make them and move them (not a job that allows for social distancing) they will have to make do with these two instead.

A blurred Bob out on Ivy Lake with two tern rafts (I liked the foreground!)

Whilst waiting for Bob I listened to the reed warblers with their distinctive chatty song and watched a pair of great crested grebes out on the water. I also noticed lots of newly emerged damselflies, yet to develop their full colours and markings, on the stems growing outside the hide. It takes a few days for them to develop their colouring, a useful survival mechanism as at present they are not quite ready to fly so blend in rather well with the vegetation. Lower down you could make out the cast skins or exuvia clinging on to the vegetation following their final moult and emergence as an adult.

Bob has also been busy strimming step asides into the edges of some of the footpaths, where it has been possible to do so, to create areas for people to pass each other more easily and aid social distancing when walking around.

In addition we have been busy planning extra signage for some of the footpaths and will be making some routes one way, again to aid social distancing and enable people to visit safely. Crossing the stretches of boardwalk safely will be particularly difficult, so people will be directed over these a certain way. We hope to begin putting signage up this week, at the entrances to the reserve and also at path junctions, so if and when you do visit please keep an eye out for them. Hopefully we will have ironed out any snags by the time we are able to open a car park, which fingers crossed will not be too far off now, we will keep you all posted…

It has been nice to spend a bit of time out on the reserve – I was back just in time to experience the bluebells along the Dockens Water, although they are going over now, and also heard my first cuckoo of the year this week. I wasn’t sure I was going to hear one this spring. There is also still some greater stitchwort flowering along the Dockens path:

On Ibsley Water the large raft is mainly occupied by black-headed gulls, although there were a couple of common tern on there early last week. It’s lovely to see the common terns back again for another summer.

By the Centre there has been plenty of insect life around the pond, with beetles, bees, dragonflies and damselflies making the most of the sunshine:

On Wednesday Bob and I were sat having lunch when the female mallard he had noticed on the new Education Centre pond made an appearance, followed by 13 ducklings. We watched them topple off the boardwalk into the water, one or two at a time, and enjoyed their company whilst we finished eating. Later on that afternoon they moved over to the original centre pond but I haven’t seen them since, so I hope they are ok.

It has also been really nice to be able to rummage through the moth trap again, although with a few cold nights it has been quite quiet. Here are some moth highlights:

There have also been a number of cockchafers in the light trap. Also known as May bugs or doodlebugs these large brown beetles also fly around at dusk.

Cockchafer, May bug or doodlebug

On Thursday I found the exuvia or final moult of a hawker dragonfly in the pond and fished it out to take a closer look:

Dragonfly exuvia

Leaving it out in a sunny spot to dry out I completely forgot about it, only remembering once I had driven home that evening. By this morning though it had found its way onto my desk, so Bob must have spotted it too!

I have also visited the meadow a couple times, the oxeye daisies are looking beautiful now they are coming into flower, rivalling the gorgeous pink display of ragged robin by the Welcome Hut which Jo shared a photo of last week. The common vetch and buttercups are also flowering and there are a few common blue butterflies on the wing.

The beautiful green beetle above has many names, it is known as the thick-legged flower beetle, false oil beetle and swollen-thighed beetle. Only the males have thickened hind legs, I might have to visit the meadow again in search of a female.

30 Days Wild – Day 2

Back working at Blashford Lakes today, this morning with the first Sunday of the month volunteers. Only a small turnout today but we spent the time working around the new dipping pond, covering up the exposed liner and generally trying to make it look more like a “real” pond. As we were working I noticed some of the plants that had grown up on the exposed soil thrown up when the pond was dug and amongst the plants were several of common fumitory.

common fumitory

This is a species that was once an abundant “weed” of cultivation, typical of the margins of arable fields. Some thirty years ago it was noticed that the distribution of turtle dove and fumitory were very similar in Devon, this gave rise to the idea that perhaps the doves needed the plant. However it turned out that it was more that they both needed the same habitat, it was a correlation, both depended upon there being a bit of space left for them between the intensive arable.

The hemlock water-dropwort growing beside the old pond is now in full flower and is usually a really good nectar source for lots of insects, so far this year I have not seen nearly as many as I would expect. However today there were at least a few hoverflies to be seen on the flowers.

Eristalis horticola

Myathropa florea

The warm night resulted in much the best moth catch of the year so far, with 34 species including a privet hawk-moth, poplar hawk-moth, pale tussock, Brussels Lace and this alder moth.

alder moth

Almost immaculate, apart form a slightly rubbed thorax.

As I went to lock up the Tern hide looking out over Ibsley Water I saw a tern in the distance that did not “look right” and no wonder, it was a little tern, in fact there were two of them. Typically very much coastal terns in the UK, so it is always a treat to see them inland, or increasingly anywhere these days, as they are one of our most threatened seabirds.

 

Ringing the Changes

ox-eye daisies

Perhaps the last of the warm days for a while so I thought I would start with a summery shot of the ox-eye daisies which are just starting to flower now. The good weather has been very useful to us as we have been resurfacing paths and doing much other refurbishment at Blashford over the last few days,. With this in mind I will mention that the car parking on the southern (Education Centre) side of Ellingham Drove will be closed tomorrow whilst the entrance track is being resurfaced. Hopefully we should be more or less back to normal on Friday, so everyone who has been putting up with the bumpy track should notice a significant change.

I had a moth trap opening public event this morning, there were not a lot of moths, but a better catch than we have had for a while. There was common swift, poplar hawk, alder moth, treble lines, light brocade, may highflyer, green carpet, brindled beauty, pale tussock,

pale tussock

silver Y, clouded border, white ermine, buff-tip, common carpet, common marbled carpet, spectacle, pale prominent, sharp-angled peacock, fox moth, flame shoulder and Apotomis betuletana (a micro moth that looks like a bird dropping).

buff-tip

Yesterday I found a dead bird on the path as I went to open up the Ivy North hide, it was not freshly dead, so I am not quite sure why it had appeared there now.

a very dead bird!

As you may have spotted, it is interesting as it has a metal ring on the leg. Although there is not much to go on I think it is a chiffchaff, the ring is one from the British ringing scheme run by the British Trust for Ornithology (BTO), it could be one ringed at Blashford or maybe it is from elsewhere, I will find out soon.

The ring on what might be a chiffchaff

The ringing of birds tells us a lot about where they go to and how they get there, how long they live and much more. With this in mind I have a challenge for all the photographers out there that visit Blashford Lakes. At present there is a pair of oystercatcher with two chicks near Tern hide, one of the adults has a ring, but I cannot read it properly, I have three of the numbers but need more to find out where it came from, if you get a picture that shows any of the numbers or letters please let me know, we may just be able to piece the number together. I have also noticed that two of the common tern have rings, if they ever land on the posts near the hide we may be able to get the numbers off these too. What I know for sure is that neither was ringed at Blashford as we have never caught one at the reserve.

Birthday Set-up Finds

We spent yesterday preparing for today’s Big Birthday Bash to celebrate 20 years of outdoor education at Blashford Lakes Nature Reserve. As Jim detailed in his last post everyone is welcome to come along and help us mark this milestone by having a go at an activity like pond dipping, river dipping or sweep netting, or just meeting the staff and some of our wonderful volunteers.

As often happens when we are working out on site interesting things were found and yesterday’s top find was probably a magnificent caterpillar.

alder moth caterpillar

They are very brightly coloured and it will come as no surprise that they are distasteful and avoided by predators. They also have long paddle ended setae, a type of modified “hairs”, which make them look quite strange.

paddle shaped seta detail on alder moth caterpillar

I had never seen one of these caterpillars before and although the moth is not uncommon the caterpillar is not often found, but I described it as only “probably” our top find of the day with reason.

At lunchtime a visitor came in with a “hornet” they had found in their camper van. It was actually not a hornet, but a horsefly, in fact one of the largest species there is.

female Tabanus species

The common large horsefly is Tabanus sudeticus, however there is another, very, very rare species that looks similar and is recorded from the New Forest. Although it is difficult to be sure of the identification this one has a lots of the features of the rare Tabanus bovinus. It is quite pale, has large triangle marks and a generally brownish hue.

large Tabanus species

It is also possible to see that the underside is mainly pale and the eyes distinctly green. Unfortunately as it flew into a camper van somewhere in the New Forest it would not constitute a Blashford record, but given how extremely rare the species is it would still be of great interest if it could be verified.

I hope to see you at Blashford later today!