30 Days Wild – Day 12 – The Power of a Flower

Tuesday at Blashford is volunteer day, or at least one of them, we also have a regular work party on a Thursday as well, today we were balsam pulling. The balsam in question is Himalayan balsam, a garden plant that escaped into the countryside and particularly likes growing along river and stream banks, “riparian habitats” as they are known. It is an extraordinary plant, growing to two or three metres tall in a matter of a few weeks,outgrowing all native plants that live in similar places. It also has explosive seed pods which can throw the seeds a metre or more when they pop. Being a non-native it has escaped its natural disease and insect controls and grows almost without check, which is why it has become a problem.

before

a disappointingly large stand of balsam

We have been removing this plant by pulling them up for many years now and have made good progress on the upper parts of the Dockens Water, where there are very few plants now. Clearly though, we failed to find quiet a few plants last year for there to be quite such a dense stand as this. Flooding carries the seed along and will also concentrate it where the seed gets deposited. We had a lot of plants to pull up, but we did pull them up and this is what it looked like a short while later.

after

after balsam pulling

What is very clear is that once the balsam is gone there is very little other vegetation, showing how it out competes other species.

Himalayan balsam has very nectar rich flowers, leading some to claim it is “Good for bees”, bees and other insects will take nectar from it, but I think the case for it being “good for bees” is very questionable. When it flowers it is very popular, but before this it shades out all the other flowering plants that would providing nectar, so across the season it probably provides no more than would be there anyway, it makes the habitat one of feast or famine cutting off food sources earlier in the season.

Flowers are immensely rich sources of food for lots of creatures, perhaps especially insects, but I have watch deer carefully picking off flowers and leaving the rest of the plant. The flower has the protein-rich pollen and the sugar-rich nectar, in short the stuff needed to make animals and keep them running. The flowers are not giving this largess, they are trying to get their pollen transferred to another flower to allow seed formation and make new plants. As the year progresses different flowers become the main attraction for lots of insects. Just now hemlock water dropwort is very attractive, but a new draw is appearing in the form of bramble flowers.

bramble flowers

bramble flowers

We easily notice the larger species such as butterflies, but look closer and you will see lots of tiny insects.

bramble flower with pollen beetles

A bramble flower with several small beetles

I think the beetles in the picture are pollen beetles, but I am not certain.

Closely related to brambles, the roses are at their peak now, the similarity in flower form between the bramble and this dog rose are clear even if the rose is the showier.

dog rose

dog rose

I was pleased to receive reports of four little ringed plover chicks seen today from Tern hide, the first proof of any hatching so far this year. It was also good to see the common tern arriving at the rafts on Ivy Lake carrying small fish to feed newly hatched chicks.

My moth trap highlight today was a lobster moth caught at home, not a species I see very often and I still have to find the extraordinary caterpillar which is the source of the moth’s name.

lobster moth

lobster moth

To refer back to my earlier comments about the food value of flowers, I noticed the mullein moth caterpillar in my garden has eaten most of the flowers off the figwort plant, it has eaten all the best bits first!

mullein moth on figwort

mullein moth on figwort

What’s in My Meadow Today?

I know it is not a plant that belongs in a meadow in southern England, but I like bloody crane’s-bill, so I have it in the meadow, where it grows and seeds quite well.

bloody cranesbill

bloody crane’s-bill flower

Something else that does not really belong are the anthills, this is not because ants are not native here, but you do not usually get anthills in meadows. This is because a meadow is really a field that is grown to produce a crop of grass, so the act of cutting the field would knock down the anthills before they became large. I cut the grass around the anthills taking care to leave them to get bigger year by year as I rather like them. This maybe because I spent many years working at Farlington Marshes where the masses of anthills are a significant feature of the reserve.

anthill

One of the anthills being extended by the ants.

 

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30 days Wild – Day 10 –

I had the best moth catches of the year so far both at home, where the pick was a privet hawk-moth and at Blashford where honours were shared between a small elephant hawk-moth and a scarce merveille du jour.

scarce merveille du jour

scarce merveille du jour

The day was warm, although not always sunny, but it was warm enough for damselflies and dragonflies to be flying. The small blue damselflies so far have mostly been azure, but the numbers of common blue seem to be increasing and both can get very abundant at Blashford in good years.

common blue damselfly

common blue damselfly (male)

I had some mowing to do in the morning in an area where we are trying to establish a grassland and prevent the encroachment of bramble, we are getting there, but it takes time. Cutting at this time or year hits the bramble hard and although it does have an impact upon annual species perennials survive perfectly well and will benefit in the long run. I only cut a small part of the area at any one time, which also helps to minimise the impact. In one of the better areas which I was not cutting I found a single bee orchid.

bee orchid

bee orchid

The management of open areas does not just involve cutting, we also graze some areas and on the lichen heath we have been experimenting with stripping off the top few centimetres of vegetation. This gets us back to the mineral, sandy gravel to see if we can combat the increase in nutrients which is slowly turning it into dry acid grassland. Looking at one of the plots today I think we may have had some success as it was well colonised by one of the areas rarer plant species , slender bird’s-foot-trefoil,  a species that does not seem to like competition.

slender bird's-foot-trefoil

slender bird’s-foot-trefoil

Once again today I saw a painted lady, this one flying vigorously northwards, so no picture, I did get one of the other migrant butterfly I saw, a red admiral. It was perched on nettle, the foodplant so this one might have had more of a mind to breed than migrate.

red admiral

red admiral on nettle

The nearest thing to bird highlight on the reserve today was a bar-headed goose, as their native range is other side of the Himalayas I think we can be sure it is an escapee or the descendant of escapees.

I got home, with time to take a quick look in the meadow…………

What’s in My Meadow Today?

I mentioned meadow buttercup yesterday and today I spotted a small yellow and black hoverfly on one of the flowers. It is a common and distinctive species and one that is probably found in gardens all over the country.

Sphaerophoria scripta

Sphaerophoria scripta  (male) on meadow buttercup

My other find was a couple of ants on a flower of common vetch, they seemed to be feeding, at the base of the flower, possibly they had made a hole to get at the nectar flow without entering the flower, as bumblebees will do to runner bean flowers, effectively taking the nectar without doing the job of pollination.

common vetch and ant

common vetch and ant

Making the most of it…

Over the last few weeks we have been utilising our willow crop, making the most of the many withies our osier bed produces. Sometimes referred to as basket willow, common osier has traditionally been coppiced or pollarded for its withies: thin, pliable rods used for making baskets or hurdles, screens or sculptures.

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Willow withies, cut and ready to be woven!

Willow is of value to wildlife, with the caterpillars of a number of moth species feeding on the foliage, the catkins providing an important source of early nectar and pollen for bees and other insects and the branches making good nesting and roosting sites for birds.

Our volunteers were busy harvesting the willow over the winter months. Some are left to grow for longer, producing large poles which can be used for fencing stakes or den building poles, whilst our main bed is pollarded each year, providing us with toasting sticks for cooking food over the campfire, bundles of willow we can sell to willow weavers and Forest School leaders for willow craft activities and lots of withies we can use ourselves.

At their February meeting, our Young Naturalists had a go at constructing a living willow dome to the side of the Education Centre. Although it may not look living now, the willow rods pushed into the ground will hopefully take, producing lots of side shoots we can then weave into the basic structure.

We began by pollarding the last few willows in the osier bed and rummaging through the piles of cut withies to select a number which were nice and long and straight.

Using a piece of twine tied to a stick pushed into the ground, we measured out our willow dome and pushed a number of withies into the ground in a circle. We then pulled in the tips of those rods and tied them together at the top before adding some horizontally part way up the structure to pull in the shape and create a dome.

Megan had made willow hoops on a Natural Wellbeing session in January whilst with us for work experience and shared this new found knowledge with Mollie and Will, producing a number of hoops we could use as windows.

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Making willow hoop windows

We added in two archways for doors and our willow hoop windows then, having run out or time, admired our creation.

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Our willow dome

Hopefully the willow will grow and over time we will be able to strengthen our structure with the new growth, giving it more shape and definition. I know it will be a welcome addition to the area by the Education Centre, our Wildlife Tots in particular loved the structure when they joined us at the start of the month. Thank you to volunteers Geoff and Roma for your help, and to volunteer placement Sarah who has added in more willow over the past week to fill in some of our gaps!

IMG_20180309_165528

Our willow dome with a few more willow rods – thank you Sarah!

We have also used the willow to make hedgerow baskets on an adult workshop and simple platters with children from Moyles Court School as part of their Global Development Day.

On our hedgerow workshop we harvested the willow on day one, using it to create the framework of our baskets before foraging for other materials on day two, including bramble, holly, ivy, sedge, rush, broom, birch and larch, experimenting with these materials when weaving the body of the basket. Here are some of our participants finished creations:

At Moyles Court School we made simple willow platters with the children as part of their Global Development Day, introducing them to the material and discussing the many uses of willow. They really enjoyed their willow weaving experience and everyone went away with a willow platter they had expertly woven:

Whilst we’ve used a lot of last year’s willow growth, we still have plenty left for other creations, projects and campfire cooking – and there will always be more of this wonderful natural material to harvest next Winter and use in the Spring!

A Day by the Sea

On Monday Jo and I spent the morning working with the Milford Conservation Volunteers at Keyhaven. Although we mainly work at Blashford Lakes and Fishlake Meadows we have a number of other sites to look after. The reserve at Keyhaven is large, consisting of almost all the saltmarshes and mudflats outside the sea wall between Hurst Beach and the Lymington River. It is an important reserve for nesting gulls and terns in the summer and for waders and wildfowl in the winter. Its value is greatly enhanced by the neighbouring Hampshire County Council nature reserve, together the two reserves make one of the largest areas managed for nature conservation in the county.

The work we were doing was on the one small area of the Trust reserve that is inside the seawall. The wall here used to be a rather porous construction of timber and clay, as a result the land behind it was wet and quiet salty. Since the wall was reconstructed just over 25 years ago the saltwater has been kept out more effectively and the area has become drier and fresher. A lot of species are adapted to live in the narrow habitat band that lies between the saltiness of the sea and truly freshwater, as this habitat is very restricted these species tend to be very local and frequently rare. A time of rising sea level might be thought of as one which would bring benefits to these species, but in fact many are in decline. Our modern seawalls are effectively engineered so that they keep almost all of the saltwater outside and freshwater inside, the fuzzy edge that was the home of the brackish habitat lovers has been squeezed.

I was approached last year by a group of local residents interested in the potential of getting the brackish elements back, by finding a way to get some more seawater onto the marsh. It was really exciting to have such interest in what is often perceived as a dull habitat. Although we are still looking at how they goal might be achieved there is interest in the idea from both Natural England and the Environment Agency.

Monday’s task was to tackle some of the scrub that has established since the site has become fresher so that the former open character can be restored. We coppiced lots of willow and cleared a large area of bramble thicket. Hopefully once there is a more salty regime this will help to limit the regrowth of much of this scrub and encourage brackish marshland habitat.

 

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Clearing bramble thicket with the Milford Conservation Volunteers, (and collecting rubbish).

 

A Clear(er) View

On Thursday the volunteers cleared the annual vegetation from in front of the Tern hide, we do this each year for a couple of reasons. The most obvious is that it improves the view of the nearest shore from the hide. Another is that it clears the ground for the nesting lapwing and little ringed plover next spring. There are also always some seedling bramble, birch and willow that need pulling out before they get established.

before

The shore before we started

after

and after a couple of hours of hard weeding

Looking out from the hide today this did not make much difference as visibility was seriously reduced due to persistent heavy rain. Despite this there were some birds to see, including at least 800 sand martin, 3 swift, 2 dunlin, a little ringed plover, 3 common sandpiper, 33 mute swan and 3 pochard. Ivy Lake was quieter with just a few coot, gadwall and great crested grebe, there are also still two broods of two common tern chicks on the rafts.

Today was not a day for invertebrates, but I do have one more picture from Thursday, spotted in long grass as I went round locking up, a wasp spider, my first of the year.

wasp spider

Wasp spider female with prey.

 

A Bit of a Catch-up

Apologies for a bit of a gap in posts, a combination of not a lot to report and too much to do.

The volunteers have been busy working in and around the former Hanson concrete plant site to get it into shape for the winter and to enhance the establishment of the plantings and sown grassland areas.  I am amazed how well the planting have survived considering the prolonged dry spell we have had and the almost unspeakably poor soil they were planted into, testament to how carefully they were planted. We have also been cutting nettle, bramble and thistle growth off the areas that we want to establish as grassland such as the shore to the west of Goosander hide where we were working on Tuesday in the oppressive heat.

before

The shore before we started covered with low bramble.

after

The shore at the end of the day.

It turned out there was quite a lot of grass and other plants under the bramble cover, so whilst there is still a fair bit to do I think we should be able to establish a grassy bank in the longer term, ideal for wigeon in the winter and lapwing in the spring.

The warm weather has been good for insects with butterfly numbers surging in the last week.

speckled wood

speckled wood

Moth trapping has also been good with several new species for the year.

Crescent

crescent moth

As well as good numbers of old favourites.

black arches

Black arches moth, a male with feathery antennae, the pattern seems to be slightly different on each one.

purple thorn

Purple thorn.

We are into a bit of a slack time for birds at the moment, although with autumn migration just starting things should pick up soon. A single green sandpiper has been around and common sandpiper reached at least six on Monday. Today there were 6 pochard, 4 more than recently. Almost all of the common tern have fledged now, just the three late broods remain, once again success has been very high at around two chicks fledged per pair. On Iblsey Water there are at least four broods of tufted duck and one of gadwall.

I had hoped to feature some of the many fine pictures I have been sent in recent days and I will do so soon, I’m afraid tonight that the technology has defeated me.

Coppicing, Snipe and Great Whites

A brilliant sunny day, not a great surprise to Blashford aficionados, is was Thursday and so volunteer day, (it almost never rains on a Thursday morning). The volunteers continued coppicing and using the brash to make a new dead hedge in the former Hanson plant site. This hedge should grow up with bramble and so provide valuable cover and habitat. The earth bank has steep south-facing slopes and these should be great for insects and hopefully also reptiles. Unfortunately I still have no firm date on the opening of the new path but at least the preparations are progressing well.

In the afternoon I was leading a winter bird walk, it is always good to get out on site and see some wildlife and this afternoon was glorious. We started at Tern hide with good views of water pipit and 3 snipe close to the hide.

snipe-2

one of three snipe feeding along the shore near the hide

A dead gull on the shore just east of the had attracted a crow which was tucking in, but very soon it was pushed off the prize by two buzzard, and two magpie also came down to see what they could snatch.

carrion-feeders

carrion feeders

A meal of meat is always welcome to these birds but in cold weather such as we are having now could make all the difference to these birds survival. It may seem a little gory, but nothing goes to waste.

Looking further out onto the lake we managed to miss the black-necked grebe that had been reported but did find a  female red-breasted merganser, these close relatives of the goosander are usually found on the coast and it is some years since there was one on the reserve. We also saw several of our regular goosander by way of comparison, these are larger and although the females are similar, the goosander have an overall cleaner look.

At the Woodland hide we saw a good range of the regular smaller birds, but the highlight was the water rail feeding in the pool under the alder carr just outside the hide, it gave wonderful views and seemed completely unconcerned by our watching it. After failing to see a bittern, we headed back to Tern hide and were rewarded with great views of a green sandpiper on the shore below the hide, it only flew off when a second came by.

When I went to lock up I saw a great white egret roosting in the trees on Ivy Lake from the Ivy North hide, “Walter” on his usual perch. By the time I got to Ivy South hide and looked across there were two! Presumably the second bird which has been using the area just north of the reserve had joined him, it will be interesting to see if they both roost there regularly.

 

In Between Times

A cold and frosty start to the day saw mist rising from the lakes as the sun came up.

ivy-lake

Ivy Lake, early morning

It was warm in the sun though and where it touched the frost disappeared quickly.

It might be “Christmas week” but as it was Thursday the volunteers were out in force to continue a willow cutting task in the reedbed area towards the Lapwing hide. This is a curious area of habitat, an old silt pond that filled with reeds and willows as it dried out. Normally the willows grow up and the reed dies off, here though, the willows are struggling and the reed seems to be doing better each year. The original plan was to manage it as willow scrub, but the willow refuses to grow and so we are opting for a reedbed with scattered willow instead. So we are cutting areas of the weak willow and allowing the reed space to expand.

volunteers-cutting-willows-in-the-reedbed

Ten volunteers turned out today to continue willow cutting in the reedbed.

We have also been cutting willows in the old silt pond near the Centre, although here they grow back vigorously. Our last task there was the Thursday before Christmas and despite the lure (?) of Christmas shopping there was a good turn out then too. We always try to make positive use of the cuttings where we can, today we were making a dead hedge which will probably grow up with brambles giving some valuable habitat. The dead twigs are also a valuable habitat in their own right, we are often told of the value of log piles for wildlife, but deadwood does not have to be large to be good for wildlife lots of species will use smaller deadwood.

The brash from the sallows near the Centre is being used to top the bank alongside the new path that is going in between the main car park and Goosander hide. I am hoping this bank will grow a bramble top which will provide cover for lots of species and nectar for insects and this will grow up in the shelter of the dead hedge.

the-source

The source coppice

the-destination

The destination

Although the weather has turned colder so far it has not resulted in much change in the wildlife on offer on the reserve. There still appear to be 2 great white egret about, the regular bird, “Walter” mainly around Ivy Lake and usually roosting there each evening and the newer arrival which seems to prefer the area from the north of Ibsley Water and off the reserve towards Mockbeggar Lake and Ibsley North lakes. A bittern is still being seen somewhat intermittently from Ivy North hide, where there are also water rail and Cetti’s warbler. At the Woodland hide up to 3 brambling are being seen as are a few reed bunting along with all the regular woodland species. Under the alder carr just outside the Woodland hide there was a water rail feeding in the open for most of today in the wet area just by the path, giving a great opportunity to see this usually shy bird well.

On Ibsley Water the gull roost is still as large as ever and includes 2 or 3 Mediterranean gull, 2 different ring-billed gull (although it is some days since both were seen on the same evening), 10 or more yellow-legged gull and a few gulls that remain a challenge to even the most dedicated. If you look at enough gulls you realise there are a few that just don’t “fit”, perhaps hybrids or birds of more distant and unfamiliar races or just plain oddities. A Bewick’s swan made an appearance late yesterday, although it did not seem to come to roost this evening, so has perhaps moved on. On the eastern shore of the lake this morning there were at least 8 raven attracted by some carrion on the bank. In the evening a small roost of starling behind the Lapwing hide have been trying their best to put on a bit of a show, but with only about 2000 birds it is not quite ready to rival Rome city centre. Two snipe were very obliging in front of Tern hide this afternoon and a green sandpiper always seems to be there just after dark as I hear it calling when I lock the car park.

Don’t forget the Pop-up Café returns to Blashford on New Year’s Day, so you can come and see some great birds and eat great cake too!