A passion for nature

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Ptarmigan

In search of the ptarmigan

By Keith Broomfield

It was like searching for a needle in a haystack –  instinct told me that ptarmigan were watching my every move on this 3,000ft high boulder field in the mountains by Glenshee, but their cryptic plumage had merged these subarctic grouse seamlessly into the stark lunar landscape.

Their droppings lay scattered around the summit of Carn Bhinnein and it almost seemed as if the birds were taunting me by their near presence. Camouflage is their means of survival and despite my frustration at being unable to find any ptarmigan, a begrudging admiration swept my mind at their ability to maintain perennial concealment.

After much fruitless searching, I abandoned the quest and instead focused on a cushion-like ball of hairy fluff nestled in among the rocks. It was woolly fringe-moss, a high mountain specialist with the most appropriate demeanour of appearing to have fleece-like insulation to protect itself from the cold mountain air.

It is a common moss of uplands, especially open, stony, windswept ridges and plateaux, and features intricate wispy twists and curls. Nearby lay another high montane specialist – fir clubmoss – which is more closely related to ferns than mosses. The rocks around me were encrusted with colourful lichens, and it felt like I had been drawn into a mysterious primeval world, surrounded by nature’s earliest creations.

I hunkered down in a gully out of the cool wind to ponder ptarmigan.  They are mountain chameleons, their  plumage changing with the seasons, merging and matching in sympathy with the surroundings. In winter, ptarmigan turn almost completely white, but the spring and summer plumage is more of a mottled grey and brown, with flashes of white. The feet are completely feathered, which not only prevents heat loss, but acts as a useful pair of snowshoes in winter.

Ptarmigan eat the leaves and shoots of arctic-alpine plants, as well as insects in the summer. The crowberry is important and ptarmigan feast upon their glossy black fruits in late summer.

Rising to my feet, I wandered further over the boulder field – five more minutes looking for ptarmigan, then I would call it a day. The five minutes stretched to 10, and then to 15, but the ptarmigan remained elusive, so I descended back down into a nearby glen. Late-season meadow pipits and skylarks bounded up in the air before me and a kestrel hovered above on quivering wings.

By a craggy knoll where a lone sentinel rowan stood, the mewing calls of a family of buzzards whirled across the breeze. It was a somewhat monotonous call, more akin to a seagull than a bird of prey. Soon, I spotted two of the buzzards, tumbling upwards on widespread wings before they swept away over a shallow-curved ridge.

I looked back up the glen towards the distant conical top of Carn Bhinnein from which I just descended, and wondered whether the ptarmigan were still watching me from their lofty vantage points in among the high boulder fields – invisible and inscrutable to the very last.

Grasses – delivering the air we breathe and the food we eat

By Keith Broomfield

The names roll deliciously off the tongue – fescues, bents, and Yorkshire fog – and which represent among our most ecologically important organisms of them all – the grasses.

Grass is so ubiquitous that we tend to take it for granted as an integral part of the landscape. And there is a truism there, for grasses are the environment,  found in abundance from the equator to the poles and prospering everywhere we look. They are the core foodstuff for a huge variety of creatures – and, of course, the foundation stone of our agriculture, whether to provide grazing for livestock or grain for our daily bread. Without grasses, nature and humanity are nothing, an empty vassal devoid of hope or meaning.

Bizarrely, perhaps, grasses are seldom remarked upon in nature writing, probably because they lack the powerful and impactful blooms of wildflowers. But grasses are as beautiful as any flower, and as I wandered recently through an ungrazed hill pasture near my home, huge sweeps of the delightfully named Yorkshire fog grass swayed in the breeze like a rippling sea.

Although not always immediately obvious to the eye, grasses do have simplified, wind-pollinated flowers that turn into seed heads as the season progresses. In Yorkshire fog, the flowers are tinged with pink and which often deepen into a deeper pinkish-purple before fading, and when they do so, will transform a pasture into a wonderful pallid hue.

On walking across the pasture, I endeavoured to identify as many species of grass as I could, and it became completely addictive, for the more I looked, the more was revealed, and it was impossible not to become smitten by their sublime beauty. One particularly eye-catching species was wavy hairgrass, with incredibly delicate, shimmering and almost translucent spikes. Other engaging species were red fescue, sweet vernal grass, common bent and silver hairgrass, each type exhibiting finesse and elegance in their shape and form.

I sat on a small, mossy mound surrounded by various grasses to reflect and immerse myself in their green and wonderful world of proliferate abundance. A small cricket crawled over one grass blade before disappearing into the thick and green tangled microworld where beetles scurried and lacewings rested.  A ringlet butterfly on dark-flashed wings twirled up into the air before quickly settling again.

Field voles would abound in this grassy area, and in the sky above, kestrels and buzzards often soar in anticipation of pouncing upon one. Grass is a fundamental building block of nature, underpinning so much other life.

Grasslands and have been described as Britain’s largest solar panel, absorbing sunlight and in the process taking-in carbon dioxide and converting it to oxygen. They deliver the air we breathe and the food we eat, and provide habitats that support a diverse array of life.  I sat for a while longer in this grassy margin, transfixed by a polka-dotted ladybird that had magically appeared, and which slowly climbed a frond of grass, before unfurling its wings and spiriting itself away into the warm summer updraft.

 

A beaver and her kit

An inspiring encounter with a beaver and her kit

An evening stroll along my local river – nightfall was approaching and I could sense a stirring in the air, as if the creatures of the gloaming were about to emerge.

I scanned the opposite bank in hope of spotting an otter or a kingfisher, but it was a dark, furry rotund form at the bottom of a steep section of bank that caught my eye – a beaver! It was grabbing overhanging leaves and other luxuriant vegetation with its front paws and munching with such enthusiasm that the chewing noise was clearing audible.

Then, another movement, this time in the water – a small brown head swimming with a V-shaped wake across the river towards the sandy shelf where the other, much larger, beaver was feeding. This was a beaver kit – young and full of the zest of life, and a standard bearer to the integral beauty of nature and the hope of a new beginning. The kit emerged onto the bankside to greet its mother, rising on its hind-legs as if in celebration of their reunion.

They both fed together for several minutes, before sliding back in the water, their long paddle tails slithering along the sand bank as they did so. Beavers are remarkable creatures – unusually for a rodent, the parents are faithful and pair for life, and the young are born fully-furred with open eyes, and can swim from the moment of birth.

Watching the mother and kit was an emotional experience, and it was like spiralling back into the depths of time when wolves and bears once roamed Scotland and it was a truly wild place.  As such, the return of beavers to Scotland after centuries of extinction is something we should all celebrate, for they belong here and are as much part of our rivers as are trout and salmon.

Beavers do sometimes come into conflict with farming and other landowning interests – I fully understand that – but the environmental benefits they bring are immense and in the  21st century it should not beyond the wit of humanity to live with nature, rather than continually seek to destroy it.

Research has consistently shown that where beavers are present, biodiversity is significantly enhanced by their activities, making them animals to cherish.   In areas where beavers dam small burns, the large ponds created above abound with invertebrates, amphibians and water plants. Many trees felled are coppiced rather than killed and will spawn new green shoots of recovery. The clearings created enables sunshine to filter to the ground below, enabling, wildflowers and their pollinators to prosper. Tumbled trees slowly rot, providing refuge and places to reproduce for a host of other invertebrates and fungi. A tree felled into a river acts like an ocean reef, providing shelter for fish and many micro-creatures.

The activity of beavers has been engrained in the natural order since the dawn of time, ensuring a diverse environment that supports more life than would otherwise be possible, which in turn brings vitality to our environment that benefits us all.

 

Fox cub with white paws

On the trail of the white-pawed fox

By Keith Broomfield

As far as accessibility was concerned, this was the fox den from hell, which to reach involved wading knee-deep across a tumbling river followed by a scramble up a steep, nettle-infested bank.

I had first noticed the site on the far bank of the river earlier in the spring when the leaf cover was still sparse, and where through gaps in the trees it was possible to glimpse a sandy mound of excavated soil at the top of a wooded slope. A badger sett, I presumed, but its inaccessibility and need to wade across the river was a discouragement for me to monitor it with my trail cameras.

But after having no luck in filming badger cubs at a more easily reached sett nearby, I decided to relocate the trail cameras to this new site. The water swirled around my legs as I forded the river, and the climb up the far slope left me puffing, but as soon as I reached the first entrance hole, the remains of a rabbit and the distinctive musky aroma made me realise this was an occupied fox den.

Badgers never leave prey remains outside their setts, whilst vixens are not so fastidious, and if prey is abundant all kinds of bits and pieces are left lying about, including birds’ wings, feathers, and rabbits’ feet.

Examining the trail camera recordings a week later confirmed that there was a fox family in residence, and it was wonderful to watch the cubs at play, tumbling and clambering over one another with the zeal that is the hallmark of young life. Curiously, my first badger sett inclination also proved correct, for adult badgers occasionally emerged from the same hole as the fox cubs.

There were several holes on the site, which was obviously quite a large sett complex, and presumably the fox family and the badgers occupied different parts, although occasionally shared the same exit holes.  Foxes are not terribly good at digging and it is much easier for a pregnant vixen to set up residence in a pre-made home, rather than going to the effort of making her own den.

It was no doubt an uneasy co-existence, with the badgers regarding the foxes a threat to their cubs and vice versa. The vixen when she appeared on camera did not look in the best of health, thin and scrawny and with a slight limp. But the cubs looked robust and the mother was obviously fit enough to catch plentiful prey.

The other big surprise about this fox family was that one of the cubs had white forepaws, which looked like neat little pale socks set against the dark legs. I had never seen such a genetic aberration before and the wee cub was cuteness personified as it cavorted around the den. On my early morning walks in the months to come, I will be keeping a keen look-out for this white-pawed beauty as it pads along field edges and hones its hunting skills for voles and rabbits.

Paradise in a nutshell at Knoydart

By Keith Broomfield

They were flowers of the sea breeze, a sweeping carpet of yellow-dazzled colt’s-foot that swept along the wild Knoydart foreshore in a shimmering celebration of the beauty of a west highland spring.

Often described as Scotland’s last wilderness, Knoydart is completely addictive, comprising an eclectic mix of wild rugged mountains offset by tranquil meadows in the glens, and beautifully benign woodlands where wildflowers shine from every corner.

It was the woodland wildflowers by the small settlement of Inverie that really caught the eye as my wife, Lynda, and I wandered along a waymarked trail signposted as ‘Knoydart in a Knutshell’.  The bright, limey-green freshness of tree leaves unfurled gloriously from overhanging branches, set against the backdrop of the sweet cascading music of willow warblers and the abrupt nightingale like song-bursts of blackcaps. On the ground, the gold-spangled blooms of lesser celandine glowed, primroses flickered in jaune splendour, and the first bluebells were tentatively unveiling themselves.

Perhaps the walk should be renamed as paradise in a nutshell, for this was a place where one could linger for eternity to revel in the soothing balm of nature. One of the plants on the woodland floor that drew my interest was wood sorrel, which has the habit of growing on moss-covered tree stumps and fallen branches. It has an under-stated, subtle beauty and it really is worth examining this flower closely, for what at first glance appear as white petals are in fact gently inscribed with lilac.

Soon, we reached the Inverie River, with its unusually crystal-clear water where trout and salmon thrive. A pair of sandpipers flew by the bank edges on quivering wings, the male trilling his love song as he doughtily pursued his mate in an elaborate courtship display. Sandpipers are all too brief breeding migrants to our shores, arriving in mid-April and most having departed by early August.

A short distance further on and we reached the shore at Inverie Bay where the swathes of colt’s-foot became the star attraction. Colt’s-foot, which look a bit like dandelions, thrive on shallow, well-drained soils such as here on the Knoydart foreshore, and are often found by gravelly track edges throughout the highlands. It is one of our earliest emerging spring flowers, and the plant is so-called because of their large horseshoe shaped leaves that develop after the flowers have wilted. The trait of flowering before the leaves emerge has given rise to the folk-name ‘son-before-father’.

The tide had receded, and out on the muddy pools of the bay a whimbrel probed its long, curved bill into the sediment for worms. Similar in appearance to a small curlew, this whimbrel was passing through, heading north to breeding grounds in Shetland or beyond. An oystercatcher ‘kleeped’ in the distance and the flute-like hypnotic resonance of a calling cuckoo floated across the air. Superlatives hardly give justice to the true magic of spring in Knoydart, for this is a place that fills the heart with an overwhelming contentment spirited from the portals of heaven.   

Gran Canaria giant lizard

The marvel of evolution

Adaptive radiation is a fascinating aspect of evolutionary biology where a common ancestral species develops into a wide variety of different others, each one adapted to the niche parameters of their specific environment.

The famous Darwin’s finches in the Galapagos Islands are a classic example, with the individuals in each island having evolved their own unique features. It happens in Scotland, too – for example, on St Kilda where the wrens and field mice have formed their own separate sub-species, featuring slightly different morphological traits from their mainland cousins. The freshwater sticklebacks in North Uist show differences depending on which body of water they inhabit, and there are numerous other examples of such diversity.

A recent visit to the Canary Islands brought home to me this wondrous facet of nature. On the island of Gran Canaria, I was lucky enough to stumble upon a giant lizard, a magnificent reptile that is unique to the island, and which can grow up to 80cm long (including the tail), although most specimens are smaller. The one I found was about 50cm long, and was taking things easy by basking in the morning sun on a steep embankment close to the shore.

The neighbouring islands of La Gomera, Tenerife and Hierro also have their own endemic giant lizard species, the isolation brought by the islands spurring distinct differences in form. Tenerife and Gran Canaria also host the globally unique blue chaffinch, which have diverged further, so that each island has its own species.

The Canary Islands are a wonderful holiday destination for those with an interest in nature, with the flora being especially fascinating. Around 40 per cent of the islands’ plants are endemic, many of which are endangered.

The mountains of Gran Canaria are truly spectacular, and my wife Lynda and I spent much of our time hiking the high trails, whilst at sunrise I would slip into the sea with snorkel and mask to explore the underwater life. Dawn is my favourite time to go snorkelling – the rising sun delivers a magical soft-lit aura and many nocturnal marine creatures are still out and about.

One early morning snorkel brought my first ever encounter with a flaming reef lobster, a stunning bright orange crustacean with white spirals and other intricate patterning on its shell. Another intriguing discovery was a cylindrical shaped gelatinous and pink-flecked object that drifted just below the water surface, which transpired to be the egg mass of a diamondback squid.

As well as birds, reptiles and plants, the uniqueness of life in the Canaries extends to fish, and one type I encountered was the island grouper. Classified as vulnerable on the ‘red list’ of endangered species, it is only found around the Canary Islands, Madeira, the Azores and Cape Verde.

This was a charismatic fish with striking blotches and stripes on the body, and a confiding demeanour that allowed a close approach.  Its beauty and brashness perfectly encapsulated the compelling nature of the Canary Islands and its boundless capacity to create new life from within.

Otter

A magical otter encounter

A piercing whistle whirls across the damp air from the far bank of the River Devon. I know it is an otter but as I peer through a tangle of alder and willow branches, I see no movement. Another whistle, even louder this time, and then I spot the otter running along a carpet of golden, tumbled leaves by the bank edge.

The otter slips into the water and swims upriver leaving a V-trail in its wake, continually calling all the while – a whistle with a pitch of such intensity that there was an air of desperation to its tone. This might have been a mother looking for a lost cub, or perhaps a male seeking out a mate, but whatever the case, the animal did not seem unduly perturbed by my near presence, despite eyeballing me several times.

Indeed, after swimming a hundred yards upriver, the otter then turned around and swam straight back down again, passing close by me before disappearing in among a twisted mass of alder roots by the bankside. The whistling had stopped, the otter was gone, and the only sound permeating the air was the gurgle of rushing water – beautiful and hypnotic music drawn from the very depths of the river.

Normally, dawn and dusk are the best times to see river otters, but this encounter was in the early afternoon, which underlines that when it comes to wildlife spotting, always expect the unexpected.

I wandered on, disturbing a diminutive wren that churred its annoyance as it swept up on brown-blurred wings from a thick stand of twisted bramble stems. Wrens are one of our most ubiquitous birds, equally at home by a riverbank or on high windswept moors, or in thick gorse by the coast. The name ‘wren’ derives from the middle English ‘wrenne’, meaning ‘little tail’.

Another whistle permeated from across the water, but rather than an otter, it was a kingfisher streaking just above the river’s surface in a bolt of electric-blue. It has been a good year for kingfishers on the river, the low rainfall in the early part of the breeding season suiting their requirements perfectly for seeking out minnows in the languid pools.

Down by my feet, a scrap of black velvet caught my eye. It was a dead water shrew, the black upperparts contrasting starkly with the white belly and chest. It is the largest of our shrews, a capable swimmer that can dive to depths of two metres in search of aquatic invertebrates.

Finding the corpse reminded me when as a boy I had found a dead water shrew by a burn that tumbled into Loch Earn, and as I cradled its velvety body in my hands, I wished it were possible one day to glimpse a live one. Since then, I have seen a living water shrew on only two occasions – but that is enough for my dream to have come true, providing a fleeting insight into their mysterious and secretive lives.

 

Glorious chatter of redwings in the gloaming

By Keith Broomfield

As the diminishing light of dusk gathered over the hill pasture in the strath, redwings swept up from the green-spiked rushes ahead of me, dancing and bobbing in the air before alighting on the top of a beech that stood proud in a nearby shelterbelt.

The air hung heavy with the redolence of autumn, and because the claggy soil was frost-free and yielding, the redwings had been foraging in among the rushes for worms and other invertebrates. These delightful winter-visiting thrushes were lively birds, perennially wary of my presence, and constantly uttering high-pitch ‘chook’ calls to keep in contact with one another.

When hard frosts descend, redwings switch from invertebrate food to avidly seek out the berries of hawthorns and hollies, quickly stripping them bare of their rich bounty. It is at this time they will often come into gardens. If the weather remains bitter and prolonged, redwings may move further south and west to seek respite in milder climes.

Redwings breed in Scandinavia and adjacent areas of northern Europe, descending upon our shores every autumn. A small number also breed in northern Scotland and I recall once finding a nesting pair near Lochinver in Sutherland.

The proximity of this sloping pasture to my home makes it one of my favoured haunts at dusk – a compelling environs where roe deer graze and buzzards soar in search of field voles and small rabbits. Indeed, as I continued my circuit of the field under the background chatter of the redwings, rabbits abounded everywhere, their white-fluffed tails glowing like beacons in the blur of the gloaming.

Despite their abundance, the future of this rabbit colony hung in the balance because myxomatosis or the highly contagious rabbit viral haemorrhagic disease could wreak devastating havoc at any time. However, rabbits numbers have been high here for several years and so far they have avoided disease.

The previous week I had glimpsed a stoat on the hunt for rabbits, its sleek, sinuous body undulating in harmony with every contour of the ground. I lost it in among a thick flush of rushes, but I imagine it would find plenty of rich pickings on this hill pasture.

Frances Pitt, the early 20th century naturalist, reflected upon the fear that stoats instil in rabbits. She wrote: “A rabbit that knows a stoat is on its tail becomes so silly with terror that it sits down and waits its doom” … although she countered this by continuing …. “yet I have seen rabbits feeding unperturbed with a stoat romping near”.

My stoat sighting was unusual, for it was the only one I had encountered over many years of walking these fields. This made me ponder – why so few stoats when there is much easy prey in the form of rabbits about?

I don’t know the answer,  underlining that there are many insidious forces at work in our environment – many human induced –  which we comprehend little about, and that is something I find deeply worrying.

A close encounter with a marine leviathan

By Keith Broomfield

A large, mushroom-shaped creature pulsed into view through the briny underwater haze like a mysterious alien from another world. I slowed my breathing through my snorkel tube and watched it glide past, awed by its size and intricate frilled tentacles that trailed behind the bulbous main body.

It was a barrel jellyfish and the first time I had encountered one under water, although I had glimpsed them several times before in Scottish seas from piers and when aboard boats. These cream-coloured monsters really can grow to the size of a barrel, but they are gentle giants, feeding on plankton and their sting is mild and not generally harmful to humans. The biggest specimens can exceed 1.5m in length and 35kg in weight.

I was snorkelling at Ardmair Bay, a sheltered backwater of Loch Broom that lies close to Ullapool in Wester Ross. It is one of my favourite snorkel haunts because of the clarity of the water and the abundance of marine life. As well as the barrel jellyfish, there were scores of lion’s mane jellyfish drifting about, which I carefully steered around because their multitude of long trailing tentacles do give a nasty sting.

I was snorkelling in a sheltered part of the bay, which was home to a host of specialised creatures that prefer a more benign marine environment, including fluted sea squirts, dahlia anemones and burrowing anemones. The white coloured sea squirts were especially abundant, growing in clusters upon seaweeds. Sea squirts have sac-like bodies with two siphons on the top (one inhalant and the other exhalant) through which they draw water and carefully filter out food particles.

A glowing nugget of orange caught my eye on the seabed about 15ft down. I took three deep breaths and dived under to investigate and was rewarded with the remarkable sight of a type of sponge known as a sea orange. It was a fascinating organism – about the size of a cricket ball and with several large pores on the body. Sponges are the simplest of all marine animals, and like the sea squirts, gain nourishment by filtering water through their bodies.

After surfacing and regaining my breath, I drifted over a forest of kelp, and was immediately drawn into the embrace of another bizarre lifeform known as sea mat, which coated fronds of kelp in a dazzling, white crystalline veneer.  While sea mats are superficially similar to the encrusting lichens found on rocks on land, they instead belong to a mystical group of colonial animals known as bryozoans. I lifted gently a frond of kelp to examine the coating of sea mats in more detail, enthralled by their intricate, embroidered shawl patterning.

I ventured back into deeper water and in a truly special moment, a harbour seal swirled past me, before taking a wide circle to inspect this strange humanoid that had encroached upon its watery world. Unsure whether I was friend or foe, the seal flashed away into the blue depths, sparking a tingling wave of exhilaration to course through my body.

Dark green fritillary

Fritillaries and fascinating fungi at Glenshee

The oystercatcher was agitated by my presence, and its piercing ‘kleep, kleep’ call rang around the grounds of Glenshee Parish Church by the Spittal of Glenshee. This bird was a concerned parent with young hidden in among thick grass nearby and was keen to see me off the premises.

The boundary wall of the church made the perfect look-out post  for the oystercatcher to remonstrate against my presence, so I conceded to its will and left the bird in peace, hoping the concealed youngsters will survive the gauntlet of predators and reach adulthood.

Oystercatchers are good parents, and this bird reminded me of an instance several years previously on driving slowly along a small road near Braemar when an oystercatcher suddenly appeared right in front of the car and madly flapped and dragged its wings as if injured. The oystercatcher was not hurt, but had chicks hiding in the grassy verge and was feigning injury to try and draw the intruder – in this case two tonnes of trundling metal – away from it youngsters.

The basic urge of parental protection is a trait found in most adult birds, and as I headed up towards nearby Gleann Taitneach, a diminutive meadow pipit fluttered close above my head as it, too, made its displeasure known at my wandering too close to its nest hidden somewhere nearby.

A heavy rain squall swept across the glen, soaking me through before I had the chance to don waterproofs, but the grey clouds quickly parted and sunshine danced across the landscape once more. The warming rays of the sun brought out a dark green fritillary butterfly, which skipped across the heather and grass in an energetic flight.

Despite the confusing name, they are beautifully patterned orange butterflies, forever on the move and hard to approach close because of their innate wariness. This one spiralled down to the ground and came to rest in among a tangle of grass. I was keen to take a photograph but knew the only possible approach was to carefully crawl along the ground so as not to disturb it.

This presented a dilemma, for the ground was a minefield of cow pats, but throwing caution to the wind, I eased myself gradually along the grass, trying to avoid the dung in the process. The ploy worked and I was able to crawl within a few inches of this tangerine dream to capture it with my camera.

As I lay on the ground, I noticed the cow pats around me were adorned with clusters of glistening toadstools, which I think were a species known as Deconica coprophila. Many types of fungi prosper in dung as it makes an excellent growing medium, rich in nutrients. The fungal spores are eaten by the cows when grazing, which are then excreted, enabling them to germinate and spread. It is a marvellous example of nature at its most ingenious, evolving clever strategies to ensure the optimal conditions for survival and the means to colonise new areas.

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