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Newsletter No.9 – October 2004 For the sake of download times, the photos have been ommitted from this page. If you would like a full pdf version of the newsletter, click here (4.4mb) For pdf files of previous newsletters click here.
From your co-ordinator The summer of 2004 seems to have flown by. Our garden has grown wonderfully
well and vegetables have been plentiful. Pauline Oldroyd From our Wildlife Liaison Officer You Can’t See the Wood for the Trees My answers to the questions are; Massed ranks of planted conifers are, rightly, taken as being an example of wildlife-unfriendly habitat. But it is the management rather than the conifers themselves that are to blame. If you are in doubt, visit any of the National Forests of France where they practice a very different style of management. The woods are just as commercial, but wildlife thrives. The main difference is in essence that areas are not clear felled and then re-planted, but are progressively thinned and then allowed to regenerate with seed from nurse trees left to grow large. Things are at last changing in this country but it will take a long time. Less noticeable is that many of our native woodlands are just as poor for wildlife; many oak woods have not been managed for years. Most would have been clear felled in the 1940’s and then left. Eventually they will sort themselves out but in the meantime much wildlife will have been lost. One forest of single-age stems and no light reaching the ground is much like any other; deciduous is slightly better than conifer. Unrestricted sheep grazing does not help! In my native Sussex the situation was much the same until the great storm of October 1987, which was quite simply the best thing to happen to the Sussex woods in 50 years. The woods were beautifully thinned and a huge amount of dead wood deposited, light returned to the woodlands and wildlife thrived. By spring 1988 there were birds and butterflies in areas where there had been none for 40 or more years. The most damage was done by humans who just cannot leave a good thing alone. Why, if they had done nothing in a wood for 50 years, did they suddenly have to start ‘clearing up’ just as nature had put right their 50 years of mis-management? A hurricane may not be the best way of sorting out the woodlands of Wales, but if it blew away a few million sheep as well, who knows? Richard Becker
Last year we decided the roof of the indoor pool and barn needed replacing due to severe problems with condensation and ingress of rain. Research into the best way it could be done included discussion with an expert at the Royal Welsh show from the confederation of roofing specialists and visits from builders to give quotes for the work. We decided to get our dependable local builder to do the work and he through pressure of work and weather conditions suggested we commence the work in July 2004. Final measurements and ordering of the specially cut roofing material took place in May. Newsletters from Radnor Wildlife Trust in June contained lots about bats and made us think as PNR members we ought to find out the best way to minimise disruption to the bats that we new existed in the roof space. A site meeting with Jonathon Gilpin and Fiona Luckhurst started the initiation into a bats view of the world! Bats being a protected species cannot have their roosts disturbed during the breeding season and work can only be undertaken under licence. In July large quantities of roofing material were delivered and no doubt it will remain in large stacks until we can finalise the licence and let the young pipistrelles grow sufficiently to leave their maternity roost. No doubt by then the autumn gales and lashing rain will be upon us. Long forms have been completed and much correspondence made, but after my professional letters I may be able to append ‘licensed bat disturber’. Chatting with local farmers and friends elicits a common response, saying we were mad to let the authorities know anything about our intentions. What of our own conclusions? We have a certain pride of having done the ‘right’ thing and the knowledge that each of our pipistrelles consumes up to 3,000 midges and mosquitoes in a night making our human environment much more comfortable, is rewarding. A little delay in re-roofing will be in the long term of minor significance but please could the weather be kind in October and November! Mike & Stephanie Warrick Editor’s note:
If you have got a bit of space or are planting some trees, please include the Alder Buckthorn in your planting scheme. Apart from being an attractive shrub and producing a good crop of berries it is the only foodplant in this area for the caterpillar of the Brimstone Butterfly. It appears to be palatable to sheep and is therefore completely absent from most of the area. It grows well in the Hafren Forest (which is probably too high and cold for the butterfly), along the coastal estuaries and in the lowlands of the borders. It must have been much more widespread in the past. Not surprisingly
I have seen only one butterfly in the last four years. However if enough
people plant buckthorns it ought to be possible to encourage the butterfly
(which more than any other says that spring has arrived) into mid-Wales.
The Brimstone is an extremely mobile butterfly that wanders huge distances.
The furthest north it breeds in England is Yorkshire, but butterflies
regularly wander into Scotland, so Hereford to Llandod or Welshpool
to Llanidloes should not be too much of a problem. Richard Becker Editor’s extra ( extracts from my tree book) Each issue, one PNR member is asked to write something and this time it is the turn of Heather and Kelvyn Curry from Nantmel. (Thanks Heather for the article and Kelvyn for the photos.) Over twenty years ago, we fell in love with a south-facing, semi-derelict cottage and barn nestling in the Radnorshire hills and, resisting the advice of less romantically-minded members of our families, we bought it. There was an option to buy the two fields which surrounded the house, which we accepted, so we became smallholders on our ten acres. The front field had been recently ‘improved’, but the back field, on a steep north-facing slope, had not, although it had been well fertilised. Over the years, we have experimented with various grazing regimes - or maybe that sounds a little more purposeful than what actually happened! Anyway, we have had a variety – from a weaving friend’s woolly fleeces (mad Jacobs and giddy Wensleydales!) to this summer’s two mares, two foals and a gelding. (We did not want our own animals, other than the menagerie of chickens, ducks, geese, etc which we had already acquired, so have been intermittently on the look-out for likely graziers.) We have resisted well-intentioned offers to include our fields in the annual liming, and have applied no fertiliser. So, twenty-odd years on, what have we got? This is what I asked Julian on a sunny October morning with mist lying in the valley below us. (Pen-y-lan is at a thousand feet.) The answer is a rich environment with numerous grassland species of plants, including common bent grass, cocks-foot grass, harebells, yarrow, tormentil, hawkbit, stitchwort, heath bedstraw, germander speedwell, common violets, vetch, wood-sorrel and bluebells. Over the years we have noticed a steady increase in the insects and birds which live and visit here. Last year, dozens of painted lady butterflies appeared for a few days in August, and this year, although we did not see any painted ladies, the back field was briefly covered in colourful six-spot burnet moths. Other butterflies we saw this year included wall browns, ringlets, red admirals, peacocks, a meadow brown and a gatekeeper. Fungi are also on the increase – there were lots on the morning
Julian and I walked around, including several different waxcaps, parasols,
fly-agaric and something unpleasant that looked like sick! Last Autumn, we dug out the pond at the front of the house which was threatening to turn into a swamp. This has resulted in more dragonflies than usual this summer – including southern hawkers, brown hawkers, broad-bodied chasers, common darters and an emperor. We also saw various damsel-flies, but didn’t manage to identify them. Lots of common newts have made their way back to the pond, but the frogs decided it was too open – or too something –and declined to lay their spawn there this year. Unfortunately, the only survivor plant-wise of the digging-out was the Canadian pondweed which we planted in ignorance, along with other oxygenators, twenty years ago and now wanted heartily to lose. Oh well, some you win… Eleven years ago, the conifer plantation adjacent to our land came up
for sale and we decided it would be a great idea to buy it and make it
into something more interesting and valuable for wildlife. It felt a
bit scary when we were told that our bid had been successful – hell’s
bells! Thirty-seven acres! The conifers had been planted in the fifties
and never thinned, so it was pretty dark and dank and dead in there.
With the invaluable help of a friend in the forestry business, we had
the whole lot cut down, apart from a couple of acres at the bottom which
had been planted with oaks. We then entered into an agreement with the Forestry Authority to replant
with a mix of native deciduous trees – oak, ash, beech, rowan,
bird cherry, wild cherry, sweet chestnut, field maple, hazel, crab apple,
holly, guelder rose…..and birch. Ten years later, and the wood is starting to look like a wood. Birch is not the only tree to regenerate – there is now lots of oak, rowan, holly, hazel and ash too. The holly in particular is doing far better than the planted ones. Some of the conifers, mainly spruce and larch, have reappeared too and we shall have to keep an eye on that. The year after the trees were felled, a huge swathe of bluebells appeared in the spring, presumably having lain dormant for forty years. Heather, mosses and many different lichens are starting to clothe the rocky outcrops, and the plants in the heathy, open rides mirror the species in the fields, with extra species such as tufted hair-grass, heath milk-wort, common knapweed, and the ubiquitous rosebay willowherb. There is quite a contrast in habitats, with wet, willowy, rushy areas too. A stream runs all the way down the western side of the wood, which coincides at the bottom with the more mature oak woodland which we left. I am sure there is a lot of wildlife in there carrying on quite happily without our knowledge. Badgers are very obvious, having developed a network of superhighways throughout the wood, and now taking liberties by coming right up to the house, digging up the lawn and making latrines! There are also lots of small mammals – voles, moles, wood mice and weasels. (I am sorry to admit that I know this, not through any scientific observation, but by identifying the corpses which our cats leave, often under the kitchen table.) Lizards have colonised the rocky bank behind the house. We have seen hares by the edge of the wood, and lots of rabbits in the wood. Our loft is home to a colony of pipistrelles in the summer, and at this time of year, a few individuals get confused and come out and fly around the house. As the trees and hedges which we planted around the house have established, there are far more birds, including all the usual field and garden ones, and occasionally something more unusual, such as the bramblings that appeared for a while last Winter. Redstarts nest in a hole in the barn wall most Summers, and greater spotted woodpeckers are common visitors, with an occasional glimpse of a green woodpecker. Larks have nested on the rough grass on the back hill for the last two years. We see flocks of fieldfares and redwings in the winter and redwings sometimes come close to the house to feed on fallen apples. Every year several pairs of swallows nest in our barn, sometimes raising two broods, and a couple of years ago three. (Flying lessons were still being conducted in mid-September!) Our nights are often punctuated by the sharp call of a tawny owl, and occasionally, but sadly less and less often, the blood-curdling shriek of a barn owl. Overhead, red kites are becoming nearly as common a sight as buzzards – we are not far as the kite flies from the feeding station at Rhayader. We feel very privileged to be able to live in such a lovely place, and to be custodians of it all for a few decades. We have made lots of mistakes but I think we’ve done some things right and provided a richer environment than when we arrived. There are lots more that we could do, especially when we have more time. We have applied to Tir Gofal, and, if it is successful, it will provide us with a management plan for the future. Heather Curry Fiona Luckhurst has written a paper about bats and we will be serialising it over the next few newsletters. It is sad for us that Fiona is no longer working for RWT. We wish her well in her new job in Yorkshire. Radnorshire is a rolling, upland county with the hills being dissected by numerous streams and river valleys. In and around the valleys an interesting mosaic of habitats can be found, with small broadleaf woodlands and permanent pasture being still quite plentiful, whereas arable land is scarce. Therefore the countryside provides excellent conditions for bats and goes a long way towards explaining the rich bat fauna that the county supports. 11 species of bat have been recorded from Radnorshire this century. (17 species exist in Britain.) Most of these occupy roosts in buildings in summer although a number of tree-roosting colonies have also been discovered. Serotine (vulnerable) Noctule (vulnerable) The Common and Soprano Pipistrelles Bat biology (Bat bits) Sizing them up: They are mammals, and like most mammals, have bodies covered in hair and suckle their young after giving birth. When you first see a British bat up close, you are amazed at how small it is. The Pipistrelle is the smallest, with head and body only 1.5 inches it would fit snugly into a matchbox. Pipistrelles only weigh about 4g – the weight of a 2p coin. Even the biggest bat is only 3 inches long and weighs about 25g – the same as a chocolate bar. 3 contenders for the “Biggest Bat in Britain” title are the Noctule, Serotine and the Greater Horseshoe bats, and are all about the same size. Body hair
The colour of the coat differs for each species, but generally they are all some shade of grey, brown or black above and off-white, buff or brown below. The individual hairs often have 3 colours along their length, so the overall impression of the colour can look different if the fur is smoothed down or fluffed up or if viewed from a different angle. Pipistrelles have hair on their upper-parts which is usually black-rooted, pale buff in the middle and brown on the tips. Bats are very attached to their fur coats and look after them with regular and careful grooming. They keep themselves meticulously clean by hanging by one foot and using the claws of the other as a comb. In this way they ensure that their fur is kept spotless and in good condition. They moult every year, so old, worn hairs are replaced by new ones. Young bats have a much greyer coat than adults and it is often more downy, too. After a few months this colour difference fades and they look more like adults. Editor’s note: we look forward to learning about other species of bats and some more “bat bits” from Fiona in the next newsletter. Review of Summer Events I arrived at Rhos Goch at the appointed hour to find a man running around the lanes in his T-shirt and shorts, apparently lost. It was Mike Warwick, who wasn’t lost but had decided (for some reason) to run over the hills from his home near Howey, rather than take the more sensible option of arriving at Rhos Goch by car (which his wife, Steph, did a few minutes later). Other members who turned up for the visit were Ros Coles (and David later), Sally Holterman, Penny Hurt. My sister also gate crashed the visit as she was staying with us for the weekend. The PNR Group visit to Rhos Goch Bog was led by Countryside Council
for Wales’ (CCW) Warden Andrew Ferguson, who had given up his day
to show us round the bog. He was a good speaker and was very happy to
discuss points as they arose, and to enter into debate about issues such
as willow and birch control. Rhos Goch is a large area of bog: over 40 hectares (100 acres+). (Note
that I’ve forgotten the actual size and have measured this from
the map – so take the value with a modicum of salt!) It consists
of a number of distinct habitats: Raised Bog, Wet Woodland, Swamp and
Grassland. It contains such species as (yes, of course I cribbed this
list from the leaflet) Heather, Lichen, Mosses, Cotton Grass, Bog Bean,
Water Horsetail, Royal Fern, Rowan, Pendunculate Oak, Birch, Willow,
Bulrush, Spearwort, Sedges, Rushes, Meadow Thistle and Devils Bit Scabious.
Insect and bird life includes Dragonflies, Teal, Curlew, Lapwing, Willow
Warbler, Reed Bunting. It is deep in places – despite the summer dryness; wellies are most definitely needed rather than walking boots. The bog is deep enough to warrant a boardwalk across almost half of it to enable access to the raised area without filling your boots (as it were). Thirty to forty years ago peat was still being taken from the bog for
fuel, and cattle grazed it. Peat is no longer taken but cattle still
occasionally graze the drier parts. As some of the wetter parts are quite
deep the graziers are understandably a little reticent about letting
their cattle roam too widely! Cattle are used to help maintain the diversity of the plants in the
bog. (The feeling I got from Andrew was that a little more cattle grazing
would be good. One assumes that slightly heavier grazing by cattle would
also help with the willow control as they enjoy barking willow trees!)
However, as a substitute the CCW have machinery with a very light footprint
that will travel on the bog to cut the grasses and reeds and help manage
the diversity. After lunch on the boardwalk Ros left us (to take over Vet standby duty from David Coles) along with Sally. We watched them slowly picking their way across and through the bog back to the cars, out of sight in the distance. (We wondered if we’d ever see them again—the cars that is—not Ros and Sally!) The rest of us explored some of the Raised Bog area before moving on to the Wet Woodland. We met David Coles (not surprisingly up to his knees in the bog) who was trying to find us as he’d now been relieved his duties by Ros. We slowly made our way through the Swamp area to the dryer grassland area and then back to the cars. These were immediately utilised to transport the remainder of the party, along with our guide, back to our house where we had a walk round our PNR followed by tea and cake. It was an interesting visit to see a unique Radnorshire bog Nature Reserve. It’s a great pity more members of the PNR weren’t able to make it down to Rhos Goch that day to enjoy the visit, and to listen to Andrew Ferguson talking to us about it and its management. Many thanks to Andrew for giving up his day to show us around. Chris Bruce Editor’s note: Malcom Davey remembers the day: To those of us of a Certain Age the visit to Denmark Farm in July was
like a trip back to childhood. For a start the weather was as summers
remembered, warm and sunny with a balmy breeze. Then there was the farm
itself; an evocative mix of hedgerows, meadows, woods and scrubland,
natural pond and large lake, each alive with it’s own native flowers,
insects, animal and aquatic life. But this is no living museum – a
British version of an African game reserve. This is a working farm which
has reverted to using traditional methods to sustain itself. Managed
grazing and seasonal cutting has allowed Nature to re-establish what
has for so long been lost. And now that it is open to the public to come
and enjoy the peace and tranquillity of real countryside, it should inspire
anyone with a little surplus land to leave it alone – and simply
wait for a host of new, and highly valuable, neighbours.
It was a wonderful hot day as we met near the telephone box in Crossgates. Bob Dennison had prepared interesting notes on the history and management of each field, pond, hedge and wood as we walked through Bob and Judy’s PNR. He explained the different hedge protection methods when planting hedges eg tubes, black plastic, woven plastic ..) and we saw the results of their hard work in a thick and varied hedge. We viewed the four and a half ponds at various stages of establishment and had fun identifying water creatures (eg: water measurer) as well as enjoying the dragonflies and damsel flies. We picnicked on a bank above the Clywedog Brook, then walked through some established and some planted woodland before returning to the A483 for a short walk back to the cars along the “nature reserve” uncut grass verge . It was a most informative and enjoyable few hours and it was a pity that more members did not join us. Thank you so much Bob for your preparation work and the fascinating guided walk. Pauline We were pleased to see so many members, and would like to thank them
for taking the trouble to attend the Bat Evening at our PNR. Luckily
for all of us it turned out to be a dry and still evening with plenty
of insects about – ideal conditions for studying bats. As darkness
fell they appeared with a final count of over 300. The roost, situated
behind the soffits and barge boards, and also in the walls of our house,
is a summer maternity roost of Pipistrelle. A few Brown Long-eared bats
can occasionally be seen in the loft. Fiona brought along a number of
bat detectors which allowed us to hear the bats. Editor’s note: Many thanks to you both for hosting the evening and to Judy for the drinks and super home-made cakes!. Question from Penny and Pauline: What is this weird yellow sticky stuff that looks like sick on grass? Answer from Richard: Notices from members · If you would like a couple of native buckthorn seedlings, please contact Richard Becker · Richard Becker has an exhibition of framed wildlife prints at Theatr Hafren Newtown in December, January and February. Pictures are for purchase and would make good Christmas presents! Pauline · If you know any animal loving person or couple who would be interested in house and cat sitting, please contact Pauline 01597 851 433 (Other members may also be interested in a house and dog sitter.) · For sale: half price - a new 14m length of top quality butyl rubber pond liner – about 1m wide – suitable for a stream (eg: joining 2 ponds) Also, used green wind shelter fabric – ideal if you are establishing a hedge or shrubs. Contact Pauline. · Marilyn Jarvis is a physiotherapist and is now accepting private consultations at their PNR in Hundred House. 01982 570 313 Pauline Oldroyd (PNR Co-ordinator) The views expressed in this newsletter are those of the contributors and not necessarily those of Radnorshire Wildlife Trust Back Copies of Newsletters Pdf files of previous newsletters are available. Please select from below: Newsletter 7 Jan 04 (1mb) |
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