30 Days Wild – Day 20

A slippery sort of a day, blue sky to start then rain, then warm sun and eventually heavy rain, it was hard to know how many layers and of what type to wear and every time I went out I got it wrong. The wildlife seemed equally confused, at Ivy South Hide as I opened up in thick cloud the grass snakes were “basking” on the tree stump.

grass snake

the largest grass snake

By the time I set out with the volunteers at 10:00 to work on the eastern shore of Ibsley Water, the sun was strong and the sun block was out in force. Ten minutes later when we got there, grey clouds were threatening and curtains of rain could be seen falling to the south-west. Luckily, and to my surprise, we got away with it and managed to return still more or less dry. On the return journey I noticed a mullein plant with the telltale tattered leaves caused by munching mullein moth caterpillars.

mullein moth caterpillar

mullein moth caterpillar

Our tern rafts have mainly been occupied by gulls again this year, this is to be expected as gulls far outnumber terns. There are about twenty pairs of terns nesting though and many now have chicks.

raft with B-h gulls

Raft with black-headed gull families

There are still a few common tern seemingly loafing around on Ibsley Water, I assume off-duty birds whose partners are still sitting on eggs, but perhaps non-breeders.

common tern

common tern

The picture, with wings open shows a clear identification feature of the species, the darker outer primaries. The reason for this is that the outer four or five of the wing feathers much older than the inner ones and so more worn. The white edges wear away more quickly which means older feathers look darker, forming a definite dark wedge in the outer-wing. The reason this helps with identification because the most similar tern species, the Arctic tern moults all of its wing feathers in one continuous sequence, meaning that there is no such contrast between the newest and oldest wing feather, making the wing look the same all along its length.

Warm wet weather is perfect for slime moulds, the really weird end of nature and a group I have featured a few times before.

Fuligo serptica

Fuligo septica

This one has various names, one is troll butter, but there are many more.

The bark chippings in the raised beds at the Centre also has some, at first I though just one type but a closer look suggests at least two. A close look is essential as the fruiting bodies are very small indeed.

slime mould 1

Slime mould fruiting body looking like tiny strings of pearls

Close up they look like minute stylised trees.

slime mould poss Physarum album

slime mould possibly Physarum album

Taking a closer look is when I realised that not all of them had white stems and spherical tops.

Slime mould close in

A different slime mould

slime mould

Even closer

30 Days Wild – Day 16

Since Thursday evening something dramatic has happened to the breeding gulls on Ibsley Water, they have completely abandoned their nesting island. I know there were lots of large chicks still on there, so I can only assume that a ground predator reached the island and predated a lot of them. Perhaps most likely is that a fox swam out there and spent some time wandering about killing chicks, but it could have been an otter or mink. Luckily some of the chicks had already flown, so this was not a complete colony loss.

The moth trap overnight caught rather little, unsurprisingly as it was again very windy, with a few showers. There was one notable species though, a lunar yellow underwing, this is a species of very dry grassland and regularly found at only two sites in Hampshire. Curiously I have several times caught them on nights that would generally be thought of as poor for moths, I once caught three in a night of high winds and rain when the total catch was only twelve moths.

lunar yellow underwing

lunar yellow underwing

Wet and windy weather is not good for insects, unsurprising really as they mostly like warm sunshine! I found one casualty in the new Centre pond yesterday.

Emperor dead

Dead emperor dragonfly

The rain and wind has brought down a few trees, a combination of wet ground and a heavy weight of leaves making them much more unstable. In the afternoon we suffered a power cut when a tree fell on the overhead power lines, hopefully to be restored by the start of the new working week. All trees will fall eventually and most will go onto have a value for wildlife, either by continuing to grow or by providing a deadwood resource. One group that uses deadwood are the slime moulds and I found what I think was one on a dead willow stump.

slime mould possibly

A slime mould (possibly)

The patchy sunshine brought out good numbers of insects and other warmth loving species, after a few days in hiding they were keen to get active if they could.

grass snake

grass snake on the stump at Ivy South Hide

 

I saw three different large female grass snake during the day, no doubt tempted out by the sunny spells, but not so warmed up that they were really active.

Other insects out and about included this distinctive click beetle.

Agrypnus murinus

Agrypnus murinus

There were also quiet a lot of solitary bees about, including this yellow-face bee.

yellow faced bee

yellow-face bee (not sure which species)

 

Birds, Beetles and Butterflies (and a bit more besides)

We are slipping into autumn, despite the weather remaining warm the signs are everywhere. Berries are ripening and birds are on the move. Over the last few days there have been between 500 and 1000 house martin over Ibsley Water, gathering before migrating south. On Ivy Lake numbers of winter wildfowl are starting to rise, at least 12 wigeon and 18 shoveler were there on Sunday and last week 3 pintail dropped in. In fact overall numbers of wildfowl are very high for the time of year, probably due to good weed growth.

Any visitor to Ibsley Water recently cannot have failed to miss the large numbers of cormorant and heron. They are feeding on the huge numbers of small common carp, a fantastic spectacle, but a sign of problems ahead. Such large numbers of small carp will grow into a very large population of medium sized fish which are likely to largely eliminate the weed and eventually most of the food for wildfowl.

Another very obvious feature at present is the lace-like leaves of the alders, they have been eaten away to skeletons.

alder leaves eaten

alder leaf eaten away by alder leaf beetle

The alder leaf beetles that are responsible are a striking metallic blue and were considered as an extinct species in the UK until just a few years ago, however their status has changed dramatically in the last few years and they are now not just present but super abundant. They seem to be everywhere at the moment and almost every alder leaf has been eaten away and they seem to have been eating hazel and even birch as well. Quiet why they have undergone such an extreme change in fortunes is something of a mystery.

alder leaf beetle

alder leaf beetle Agelastica alni

We are now heading into autumn and the moth trap is starting to catch species typical of the season, perhaps none more so than the aptly named autumnal rustic.

autumnal rustic

autumnal rustic

Another autumn favourite of mine is the intricately marked feathered gothic.

feathered gothic

feathered gothic (male)

The males use their feathered antennae to test the air for female pheromones, in effect using them to smell.

The main butterfly on the wing at present is speckled wood and they are very abundant this year, they are one of the few species that you can see throughout the season as they have a series of overlapping broods. Sometimes the first are on the wing before the end of March ans they can still be flying in November.

speckled wood

speckled wood

Autumn is also the fungi, actually they are to be found all year but many species are most abundant at this time of the year. When we were working today we came across a bright yellow patch on a log near the Woodland hide, but although many of the logs in that are are covered in fungi, this was not a fungus, but a slime mould called troll butter.

troll butter

troll butter slime mould

For those that like to venture up to the Lapwing hide in the winter or spring I have good news. The need to take the long way round or risk getting wet feet when the route through the reedbed floods will soon be a thing of the past, we are having a boardwalk constructed!

new boardwalk to Lapwing hide under construction

new boardwalk to Lapwing hide under construction

Birds and a Little More

This time of year is often a rather quiet one for wildlife, typically the summer visitors are gone and we are waiting for the winter birds to arrive. However at the moment the reserve has a lot to see, perhaps not in terms of numbers yet, but certainly in variety. Hampshire’s first ever lesser scaup seems to be settling down on Blashford Lake (aka Spinnaker Lake), which is part of the reserve, although it has no hides and is not often checked for birds by visitors.

On Ibsley Water the water pipit is being seen quite regularly from Tern hide, often close to the hide. Yesterday a pink-footed goose was spotted in the greylag flock, although origin is always hard to be certain of with geese, this is the time of year when birds migrating from Iceland can easily get lost, especially lone juveniles.

Brambling have been seen at the feeders in recent days raising the prospect that we are in for a “Finch Winter”. The couple of pictures below were sent in by Andy Tew, thanks Andy.

B98A5157

brambling by Andy Tew

B98A5171

Brambling by Andy Tew

When I have opened up Tern hide recently there has often been an adult peregrine perched close to the hide and David Stanley-Ward got the couple of pictures below, much better than my earlier efforts, despite being further away!

A34X0113

Peregrine by David Stanley-Ward

A34X0115

Peregrine by David Stanley-Ward

My person contribution to the days sightings and photographs is a little less animated and comes in the form of what I think is a new slime mould for the reserve, I know not the most immediately exciting life-forms, but they are very strange. This tiny one was found on the picnic table as I was eating lunch.

slime mould Physarum cinereum

Physarum cinereum – a slime mould

 

Mouldy Old Day

On my way to open up the hides this morning I found another slime mould on a log near the Woodland hide. More regular readers will perhaps know I am rather fond of these bizarre organisms. This morning’s species was the coral slime mould Ceratiomyxa fruticulosa and it resembled a hoar frost in colour and shape.

coral slime mould

coral slime mould

I spent the day working with the volunteers continuing to develop the new area of grassland beside the path through the old concrete works. Before anyone asks, no I don’t have an opening date for the path yet, but I hope it will be reasonably soon. We were doing some cutting, but also a lot or raking up and it was remarkable how many young common toad there were in the area, certainly many tens and probably hundreds, clearly it is an important area for them. The seeding we did back in the spring has worked surprisingly well considering how dry it was, although it seems to be making up for that now. There are lots of young bird’s foot trefoil and ox-eye daisy plants coming up so it should look pretty good in a year or two.

At the end of the day I set off to lock up the hides and my eye was caught by something brilliant yellow, another slime mould! This time troll butter, it is almost dayglow in brightness.

troll butter and very small beetle

troll butter

It was only when I downloaded the picture that I noticed the tiny beetle.

 

 

30 Days Wild – Day 15: Trying to Impress

I was out on the eastern side of Ibsley Water with the volunteers this morning to clear the areas we cut and which are grazed by ponies of ragwort. It is toxic to animals, but they will usually not eat when it is growing, however they will if it is cut and gets mixed with grass or hay. At one time it was one of the commonest plants in this area but now it is much reduced and overall the grassland is looking much better, with quite a good range of species. A couple of highlights this morning were several patches of corky-fruited water-dropwort.

IMG_1455

corky-fruited water-dropwort

Corky-fruited water-dropwort is an Umbellifer, one of the carrot family and is very attractive to insects, this one had lots of pollen beetles on it. It is quiet frequent in unimproved grasslands in a swathe roughly south of the M4, so it is pleasing to see it at Blashford where the grassland is still recovering from the ravages of mineral extraction. Another find was knotted clover, a plant of dry sandy places, often near the coast, I am not sure if I have found it at Blashford previously.

knotted clover

knotted clover

At lunchtime I tried the pheromone lures for clearwing moths again, completely without success. However I did spot a handsome black-and-yellow longhorn beetle.

black-and-yellow longhorn beetle Rutpela maculata

black-and-yellow longhorn beetle Rutpela maculata.

After doing various odd jobs in the afternoon I went to lock up the hides and found a pair of crab spiders on a hemlock water-dropwort flower head, The male is quite different from the female and a lot smaller so he has to tread carefully if he is not going to get eaten.

crab spider pair

crab spider pair

It seemed it was not only the spiders that were making plans, on a nearby ox-eye daisy I saw a female hoverfly Eristalis horticola, with a male hovering low over her and darting from side to side. I am not sure if she was impressed but he was trying hard to dazzle her with his advanced hovering skills.

Eristalis horticola pair

Eristalis horticola pair

I also found another slime mould, on the same log as the one the other day, although this was clearly a different species.

slime mould

slime mould

The only new bird sighting of note today was of a first summer little gull as I locked Tern hide. It was pleasing to see that the single oystercatcher chick from gull island has fledged and that the remaining one near Tern hide is close to doing so. In additions the single large lapwing chick is also close to flying and two of the smaller ones are still going strong. Even better was a sighting of two well grown little ringed plover chicks today. On Ivy Lake the common tern chicks are growing well and most broods seem to still be of three chicks.

30 Days Wild – Day 1: Weird Stuff

Here we are again, another June and another 30 Days Wild, I will try to keep up this year and post something every day.

I was at Blashford today with the volunteers tidying up on the southern shore of Ivy Lake, clearing away some old tern rafts and doing a little Himalayan balsam pulling, actually the volunteers did these things, I cut a few brambles and set up the telescope to count the nesting common tern. I am pretty sure we now have 25 pairs on the rafts with nests and eggs, possibly 26 pairs. So with five pairs on the Pound we have reached thirty pairs for the first time! This has been a really successful project and almost entirely the work of our great volunteer team. Over the last ten years the Blashford terns have consistently produced more flying chicks per pair than any other local colony, with many pairs achieving the magical 100% success rate, laying three eggs and fledging three chicks. Over the last year we have made a whole set of new rafts funded by a grant from Hampshire Ornithological Society (HOS) to a design refined and honed by our volunteer team.

During the course of the work we came across two grass snake, a nest of bank vole and a number of dragonflies including an emperor, scarce chaser and broad-bodies chaser.

The weirdest thing I saw today though was an old favourite of mine, a slime mould, these are strange organisms that usually live as single cells but aggregate to form sporangia and it is this stage that we can see on old wet logs. The one I found today near the Woodland hide was a Stemonitis, possibly Stemonitis axifera. They take less than a day to aggregate, develop and produce spores and then disappear.

Stemonitis axifera

Slime mould, probably Stemonitis axifera on a damp log near the Woodland hide.

Regulars will be pleased to hear that the two lapwing chicks and the two oystercatcher chicks are still doing well outside Tern hide, with an additional and larger, oystercatcher chick in the distance on Gull Island as well.

You can see various 30 Days Wild stuff on Twitter via #30DaysWild and probably lots of other places too and it is still not too late to join the over 45,000 people who have signed up to do something wild on 30 Days. Our environment is vital to our wellbeing, physical and mental health and it is where we live, despite this it is not getting much attention

Bee-flies, Butterflies and a Good Tern

Another very warm spring day at Blashford today and the air was full of all the sights and sounds of the season. There are now chiffchaff and blackcap singing in many parts of the  reserve and there were reports of a willow warbler singing near the Ivy North hide.

The volunteers were working near the main car park today, where we were buzzed by bees as butterflies floated by. As were headed back for cake, we also saw a bee-fly, it turned out not to be the usual Bombylius major or dark-edged bee-fly, but the much rarer Bombylius discolor  or dotted bee-fly, a new species for the reserve.

And so onto cake, cake is not a rarity at Blashford, less common than biscuits, but not rare. In this case it was to honour the departure of Katherine, an Apprentice Ranger with The New Forest National Park scheme run as part of the Our Past, Our Future Heritage Lottery Project. But it was not for this reason alone, but also to mark the last day of our own Volunteer Trainee, Emily, who also made the cakes, a valuable extra skill. Katherine had spent three months with us and Emily six, remarkable staying power by any standards. In fact Emily has volunteered to stay on, so is not going to be lost to the reserve yet. Katherine has moved on to spend a time with the Forestry Commission team locally.

After cake we headed out to look at the changes to the butterfly transect routes, it was a shame that it was still March, the transect counts don’t start until the 1st April and it is often hard to find many butterflies in the first few weeks. Today they were everywhere and altogether we saw seven species between us. There were lots of peacock, a few brimstone and at least 3 speckled wood, but also singles of comma, small tortoiseshell, red admiral and orange-tip.

red admiral

A rather battered red admiral, probably one that has hibernated here and so is perhaps five or six months old.

Of the seven species five are ones that hibernate as adults, just the speckled wood and orange-tip will have emerged from pupae this spring. There is a small chance that the red admiral was a recent immigrant as they do also arrive from the south each spring, although usually later than this.

A different sort of life form is also in evidence on the reserve at present and I do mean a very different life form, slime mould. These are a bit of a favourite of mine and the one on a log towards the Ivy South hide is certainly living up to the name and is now oozing slime.

slime mould

slime mould, with slime

Locking up at the end of the day there was one last surprise, looking over Ibsley Water I saw a tern amongst the many black-headed gull, not as I expected an early common tern but a very fine sandwich tern, something of a rarity away from the coast.

sandwich tern

Sandwich tern, an unexpected visitor.

 

30 Days Wild – Day 5

Continuing to catch-up. On day five I was back at work at Blashford Lakes and with the volunteers clearing around the main car park and path leading towards it. It was hot work and everyone was pleased when we called it a day and returned to the Centre for a drink and early lunch. As we were sitting at the picnic tables I noticed a large soldierfly nectaring on the hemlock water dropwort. It was a, ornate brigadier Odontomyia ornate, a species found in Hampshire only at Blashford Lakes and not seen for a couple of years.

odontomyia ornata male

the ornate brigadier

After lunch I went for a walk around the reserve to see what might need doing after being away for the week. On the way I came across a brood of newly fledged robin.

juvenile robin

fledgling robin

As I was locking up at the end of the day I found one of my favourite organisms, a slime mould, growing on a log under trees near the Woodland hide.

troll butter

troll butter slime mould

 

Animal, Vegetable, Mineral? ( or Fungus?)

Those of a certain age may remember a TV programme , having (nearly) the same title as this posting, in which a panel of ‘experts’ were challenged to identify an object from a museum collection.   It sometimes feels like I’m on the panel when a visitor asks questions about something they have seen on the Reserve.  Fortunately, for the most part, I’m usually able to give a plausible (if not invariably correct) answer or direct them to somewhere or someone who can.  I don’t pretend to be an oracle and mis-identifications are always possible. (Thanks to those who pointed out that the long-tailed tit’s nest of last week is almost certainly that of a wren)

For the most part these questions concern the animal or vegetable (fauna and flora) on the reserve, not too many people are concerned with the minerals,  the extraction of which (sand and gravel) created what we have today.   One such question, from a conservation volunteer the other day, concerned a plant/fungus that he’d seen. From the description given both Jim and I concluded that he’d been looking at the young, emergent stage of the Horsetail or Marestail. Just like these on the reserve…

Horsetail - looking rather like an alien invader

Horsetail – looking rather like an alien invader

 I believe these are variously known as Common Horsetail, Giant Horsetail or Field Horsetail or sometimes Marestail – probably Equisetum arvense ( or perhaps you know different??).  More interesting than the name is that they are among the few remaining species of a genus which for more than 100 million years was the predominant type of land based plant life, some of which reached over 30 metres tall and eventually formed the coal measures.  So they certainly have ‘staying power’ which is probably why they are a persistent weed and are much un-loved by gardeners .

Talking of strange organisms, I’m sure many of you will have spotted strange excrescences, often white or yellow though sometimes pink, on logs and tree trunks in the woods. One such caught our eyes the other day and we went back to investigate, and take a picture of this rather magnificent slime mould   

Slime mould

Slime mould

Looking superficially like a fungal growth, I’d always bracketed them in with this group of organisms.  I did, however, know that the lump you see is really a sort of super ‘love-in’ where millions ( billions?) of single-celled organisms had grouped together to form this fruiting body.  They normally live thinly spread in the forest floor and at some signal migrate to one spot to swap DNA and reproduce via spores.  Quite how this is organised or triggered is still a bit of a mystery and the things themselves are, I believe, no longer classified as fungi – probably more like amoeba, feeding on algae and bacteria in the soil.   Also nearby was one of the resultant spore masses ….

Slimemould spore mass

Slime mould spore mass

Truly the more one sees the more mysterious are some of the things around us and just to round off this section I’ll include a picture of an outgrowth on the branches of a tree close to the small car-park near the entrance. I think they’re called ‘Witch’s Broom‘ and I believe they’re caused by insects or a virus – but perhaps someone out there knows better.

Witch's Broom - just one of many such clusters of tiny twigs growing on one tree

Witch’s Broom – just one of many such clusters of tiny twigs growing on one tree

 On a more prosaic level the warblers reported last week have been augmented by at least two garden warblers, one of which was bold enough to perch out on the side of  a bush, giving reasonable views and a so-so image was possible at extreme range..

Garden warbler

Garden warbler

Although not a spectacular breeding site for wading birds we do get our fair share through the winter and it’s always nice to see some at this time of year. From the Tern Hide there were little ringed plover, redshank common sandpiper,  lapwing  and  a snipe has been seen. 

Redshank on edge of Ibsley Water

Redshank on edge of Ibsley Water

As well as many black-headed gulls, tufted duck  and thirteen mute swan , Ibsley Water was hosting at least six common tern and little grebe nesting close by the Goosander Hide.   At the Woodland Hide a lone brambling (doesn;t he know it’s time to go?)  was still in evidence  and we still have some magnificent siskin on display.

Two fine male siskin - getting food for their mates?

Two fine male siskin – getting food for their mates?