Emperors

Another very hot day and a good one for insects, hot conditions allow them to be especially active as they do not need to spend time sitting in the sun to warm up as they would on a more normal English summer’s day. I saw my first Blashford silver-washed fritillary of the year, they are regular in small numbers, but never common on the reserve.

silver-washed fritillary

silver-washed fritillary

Later I came across a pair of brown argus, these are the start of the second generation for this species this year.

brown argus pair

brown argus pair

Brown argus are one of the “Blues” but one that forgot this and so is not blue. The same area of grass was also hiding several stridulating Roesel’s bush-cricket, I am quite pleased that I can still hear these as they are quiet high frequency and so one of the species that slip away as we get older. If you do get to see one the pale line around the lower edge of the pronotum is an identifying character.

Roesel's bush-cricket

Roesel’s bush-cricket

However the highlight of the day was none of these fine insects. After lunch I went over to Ellingham Pound to check how the common tern chicks were doing, the answer was just fine and it looks as though all seven will be flown off very soon. It is a good place to see dragon and damselflies and one of the only regular places on the reserve for small red-eyed damselfly and a quick check found one floating on some algae. I then started to look at the dragonflies in the hope of finding a lesser emperor, as there have been quite  few in the country recently and one was reported from Ibsey Water a couple of days ago. After seeing a couple of emperor dragonfly, a distinctive male lesser emperor shot past, after many attempts I got a couple of shots, not great, but I only had a 60mm lens with me!

lesser emperor male

lesser emperor male

The mainly dark abdomen with pale blue “saddle” is what identifies it. As I waited for it to skim past again I inevitably snapped other dragonflies too, when I looked at these pictures later I think one of them shows a female lesser emperor.

lesser emperor female

female

The lesser emperor is a migrant from the south, it used to be regarded as very rare but is getting more common, especially in warm summers and certainly tries to breed here now. It seems it is another species that is trying to colonise thanks to warming temperatures. The Odonata (dragonflies and damselflies) seem to be especially responsive to these changes with many species spreading across Europe dramatically in the last couple of decades.

Elsewhere on the reserve there were at least three common sandpiper on Ibsley Water where there was also a juvenile little egret and, at the end of the day, 3 adult yellow-legged gull. I also found that the pair of Mediterranean gull on Long Spit had managed to fledge a single chick, or at least I could only find one. Although they have nested with us before I cannot be completely certain they have raised a chick to flying on Ibsley Water previously.

Hopefully it will cool down a bit next week and I can get some of the paths trimmed, they certainly need it! I had intended to try today but it was just too hot.

On the Hop

On Tuesday we were working on the western shore of Ibsley Water again with the volunteers. Over the years we have been controlling ragwort and nettle that used to be the dominant here to convert it to grassland, at last we are seeing some real results. Much of it is now mainly grass with a good range of herb species, especially bird’s-foot trefoil. We are also seeing a lot more butterflies and other insects, marbled white are especially frequent in the grass there now.

As we worked I heard a lot of Roesel’s bush-cricket and saw field grasshopper and meadow grasshopper. The grassy sward is not ideal for all species though, the mottled grasshopper likes grassland with lots of bare ground and very dry conditions, at Blashford they are mostly found on the lichen heath.

mottled grasshopper male 2

mottled grasshopper (male)

One distinctive thing about the males of this species is that the ends of the antennae are bent out and swollen, they are also our smallest grasshopper. The males were chirruping, or more correctly stridulating, the object of this is to attract a female and I found one that was evidently playing the right song.

grasshopper pair

mottled grasshopper pair

The females are quite a bit larger and have more conventional grasshopper antennae.

Hover Bother and Getting a Goat (Monday)

After yesterday’s attempt at a picture of a flying hoverfly I had to have another go today and I got the chance on my way round to close up at the end of the day. Yesterday’s was a Syrphus species, today’s was Volucella pellucens.

Volucella pellucens

Volucella pellucens in flight

The warm nights are improving things in the moth trap with catches increasing in number and species diversity. The highlight overnight was a very fresh male goat moth.

goat moth

goat moth

These extraordinary moths have caterpillars that eat wood by tunnelling into live trees, especially willows. As wood is not very nutritious they take several years to grow to full size.

It is also proving a good year for butterflies, with most species well up on recent years on the transects. Just now the summer brood of comma are very obvious, nectaring on bramble and just perched out in the sunshine.

comma

Comma, this one has received some damage to the left wings.

Dragon and damselflies are also enjoying the warmer summer with good numbers of most species. The only ones that were scarce seem to have been the spring species, possibly because last year’s spring was so poor there were few to hatch this year even though the conditions were good. So far I have failed to add any new species to the reserve list, despite there being several that could wander here, especially from the New Forest. For instance there is the scarce blue-tailed damselfly, which could easily get blown in and is known to wander from breeding sites. It is rather similar to the much commoner blue-tailed damselfly, which may be one reason why we have so far failed to find one.

blue-tailed damselfly

blue-tailed damselfly (male)

 

30 Days Wild – Day 29: A Grave Day

Luckily not as bad as it sounds, in fact actually a “Jolly”. Each year the volunteer team have a day out at Kitt’s Grave, it is part of the Martin Down National Nature Reserve but belongs to the Wildlife Trust. Although it is managed by Natural England we usually go up top do a couple of tasks each winter, although we did not make it last season. We have been assisting in the clearance of scrub to open up glades and ultimately restore areas of chalk grassland. As we have been doing this for some years it is interesting to see how the habitat has been developing, I am pleased to say that the answer is well so far.

Our visits are usually a great chance to see lots of butterflies, but as we left the car park this morning we were wondering if we would see any at all. Luckily we had a good start in other ways, with a turtle dove purring away in the thorns. Crossing the road to Kitt’s Grave we heard a lesser whitethroat and heard and saw yellowhammer and corn bunting. Then a surprise, a ringlet, then more and marbled white, small skipper, meadow brown, small heath and even dark green fritillary. Although it was overcast it was warm enough for insects to be active, but not so warm that they were too flighty, this allowed a great chance to get really good views as they basked in an attempt to get warm.

ringlet

basking ringlet

Some of the butterflies were warm enough to get on with life.

ringlets

ringlet pair mating

The marbled white were especially numerous and lots of the females were egg-laying.

marbled white

marbled white male basking

I noticed one small skipper below a pyramidal orchid flower spike, at first I thought it was sheltering, but it did not look right, then I realised that it was actually in the jaws of a crab spider, ambushed as it was trying to get warm, or maybe feeding. Luckily not all of them had fallen victim to predators.

small skipper

small skipper on scabious

We also saw silver-washed fritillary, but the most surprising butterfly seen was a purple hairstreak, picked up off the path, but which flew off before a picture could be taken. Although we never saw the sun we did see a common lizard, sitting out in the hope of catching a few rays. As we always do and despite unpromising conditions we had a great time and saw a lot of wildlife. Martin Down is a magical place to go and a reminder of what large parts of the southern chalk must once have been like.

 

Chalk downland extravaganza!

On Sunday twelve Young Naturalists joined us for a trip to Martin Down National Nature Reserve, one of the largest areas of uninterrupted chalk downland in Britain. Jointly owned and managed by Natural England and Hampshire Country Council, the reserve is home to a fantastic variety of plants and animals associated with chalk downland and scrub habitats.

Regular readers of the blog will know that part of Martin Down National Nature Reserve, Kitts Grave, belongs to Hampshire & Isle of Wight Wildlife Trust. This site is managed as part of the wider reserve by Natural England, but our volunteers do a couple of tasks there each winter – we did not visit this part of the reserve so as to avoid a busy road crossing and the car park height barrier, parking instead at the end of Sillens Lane and exploring the Down between here and the Second World War rifle range.

Martin Down resized

Martin Down

The weather was in our favour and we got off to a great start, spotting brown hare in a field close to where we had parked the minibus. We headed off in the direction of the rifle range, keeping our eyes peeled for butterflies and listening out for the distinctive purring of turtle dove. This stretch kept us busy with our cameras and binoculars as we saw yellowhammer, skylark, red-legged partridge, jackdaw and chiff chaff.

The butterflies also didn’t disappoint, with specked wood, common blue and large skipper settling close by for photos. We also spotted a red and black froghopper and a fabulous caterpillar, later identified as that of a drinker moth.

This slideshow requires JavaScript.

As we left the edge of the tree line and headed into more open downland, we saw small blue, orange-tip, small heath, brimstone, large white and Adonis blue butterflies, along with a cinnabar moth. We also spotted a number of stunning golden bloomed grey longhorn beetles, with their fantastic long and stripy antennae.

The butterfly highlight of the day though was possibly this beautiful Marsh fritillary, which was in no hurry to fly away:

Marsh fritillary resized

Marsh fritillary

Geoff took a photo of this caterpillar, which we think is that of a six-spot burnet moth.

Six-spot Burnet caterpillar by Geoff Knott

Six-spot burnet moth caterpillar by Geoff Knott

We also stumbled across lots of tent caterpillars, so grouped because of their ability to build conspicuous silk tents in the branches of host trees. They are sociable, with many grouping together in one spot and we believe most of those we saw are larvae of the small eggar moth – the second photo may show a different species or an older instar, I’m not completely sure!

We also scoured the tops of small trees and bushes in the hope of spotting a Corn bunting amongst all the signing skylarks, a bird I’d been hoping to see! We were in luck, watching one for some time before it flew off to perch further away on another bush.

Corn bunting by Nigel Owen

Corn bunting by Nigel Owen

We paused for lunch at the rifle range, an excellent spot as it turned out as whilst sat on the top we watched a female cuckoo fly from bush to bush below us, sitting on the top of one for a few moments before flying back into the scrub and out of sight.

We then followed the Neolithic Bokerley Ditch which snakes along the western edge of Martin Down, defining the Dorset and Hampshire border. Possibly built as a boundary in the Iron Age, it was fortified in the 5th or 6th centuries AD against invading Saxons. We were now in search of orchids, spotting plenty of common spotted orchids and finding the beautiful burnt tip orchids.

20170528-IMG_1391-Edit

Burnt tip orchids by David Felstead

Orchid hunting resized

Orchid hunting

The other wild flowers did not disappoint either and we identified yellow rattle, kidney vetch, horseshoe vetch, meadowsweet and wild or yellow mignonette amongst others. We also saw and heard stonechat, more yellowhammer, a roe doe and two brown argus butterflies.

This slideshow requires JavaScript.

We decided we had just enough energy and time left for one last slope in the sunshine so headed uphill, in search of a greater butterfly orchid. At the top of the slope we found these along with fragrant orchid and also spotted a five spot burnet moth.

Butterfly orchid resized

Greater butterfly orchid

Fragrant orchid resized

Fragrant orchid

Five spot burnet resized

Five spot burnet

It was then time to head back to the minibus before the showers started and we almost made it! We had unfortunately run out of time to linger for long by any of the scrub for the sound of turtle doves and the rain shower although very refreshing began to get heavier, but Geoff who was walking at the back of the group did manage to pick out their distinctive call.

We had a brilliant day, it was definitely hotter and sunnier than we had been expecting which bought out a great variety of butterflies including Adonis blue, brown argus and the beautiful marsh fritillary. We also had great views of brown hare, corn bunting, yellowhammer and cuckoo. Martin Down is a brilliant site for downland species and definitely worth a visit on a sunny day!

Back at Blashford, the two oystercatcher chicks were again showing nicely in front of Tern Hide with both adult birds also present and continuing to be very attentive. The light trap has been revealing more moth species now the nights are warmer, with highlights on Sunday including a chocolate-tip (sadly no photo as my camera seems to have momentarily malfunctioned!) and scorched wing and yesterday we had lots of light emeralds and a lovely privet hawk-moth.

This slideshow requires JavaScript.

Our Young Naturalists group is supported by the Cameron Bespolka Trust. Thank you to volunteers Nigel, Geoff, Emily, Kate and Roma for your help on Sunday!

Butterflies and Beetles

Suddenly it seems to be summer. On Sunday I saw as many insects as I have seen for some years, the past couple of years have been poor ones for insects, so we are due a good season. Butterflies are at a low just now, most spring species have come to and end and summer ones have yet to get going. However I did see common blue, small copper, a few orange-tip, speckled wood, a few red admiral and peacock, small and green-veined white and most exciting of all, and a first for the reserve, a green hairstreak.

green hairstreak

green hairstreak – a reserve first!

It was also good for beetles, including several brilliant common malachite beetle near the Centre pond.

common malachite beetle

common malachite beetle

Longhorn beetles are also starting to appear.

longhorn beetle pair

longhorn beetle pair

There are also huge numbers of damselflies all over the reserve now, but still rather few dragonflies, although I did manage to see a single hairy dragonfly perched near Ivy North hide, although I failed to get a picture of it.

Meanwhile, Back at Blashford

Whilst Tracy was off roaming the southern side of the Forest with the Young Naturalists, I was back at Blashford where Sunday was very pleasantly sunny and warm. As the week ahead looks grey and damp, it was likely to be the best day of the week for butterflies and a good opportunity to get the transects done. Although numbers of butterflies are declining as the spring species decline there are a few summer ones starting to appear, the last couple of days have seen the first common blue and brown argus on the wing. Thanks to Blashford’s brilliant volunteers for organising and doing the butterfly transects.

brown argus

The first brown argus of the year (well my first at least).

I also finally saw my first grass snake of the year too, perhaps not strictly my first as I did find a freshly dead one a couple of weeks ago, probably killed by a buzzard. This live one was rather unexpectedly crossing the open gravel behind the Education Centre.

grass snake

grass snake on gravel

Although it has been sunny recently it was still quite cool in the persistent north or north-east wind, this changed on Saturday and the extra warmth seemed to prompt large numbers of damselflies top emerge, I must have seen many hundreds on Sunday, mostly common blue damselflies, but including large red, azure and beautiful demoiselle.

common blue damselfly

common blue damselfly (male), still not quiet fully coloured up.

It is very pleasing to see that two of our projects are showing signs of success again. The tern rafts are used every year, but it gets harder each year to stop them all being claimed by gulls, timing in putting them out is the key. By Monday there were at least 20 common tern on the rafts so hopefully this will be enough to fend of the gulls. The other project, the sand martin wall, has had more mixed fortunes. After a few years of success to start with it fell out of favour with none nesting for several years, but this year they are back! Not in huge numbers but a visit to Goosander hide is well worth the effort.

A number of people have asked me recently when the “new” path from the main car park to Goosander hide will open, regular visitors will have noted that the work was completed some months ago now. Unfortunately the answer is still “I don’t know” but rest assured I will make it known when it is open. The hold up is not of our making, but to do with the process of transfer from previous occupiers via our landlord and the meeting of various planning and other requirements.

The change to more south-westerly winds has reduced migrant activity, but the reserve has still seen a some waders passing through in the last few days, on Sunday a sanderling with a peg-leg was by Tern hide and today a turnstone was on Long Spit (as I have decided to christen the new island we created to the east of Tern hide this spring). Both these are high Arctic breeders and only occasional visitors to Blashford.