Coleridge and a murmuration of starlings

December 2nd, 2010 by lucy

After escaping to the Lake District to visit his friends the Wordsworths, Samuel T. Coleridge was on the overnight coach to London, preparing to face family responsibilities and the reality of earning a living.  At dawn, he was mesmerised by a sight over the wintry fields:

Starlings on a vast flight drove along like smoke, mist, or any thing misty without volition – now a circular area inclined in an Arc – now a Globe – now from complete Orb into an Elipse & Oblong – now a balloon with the car suspended, now a concaved Semicircle – & still it expands & condenses, some moments glimmering & shivering, dim & shadowy, now thickening, deepening and blackening!

In his fascinating biography Coleridge: Early Visions Richard Holmes notes how this vision would haunt the poet long after.  It was

some sort of self image for Coleridge, both stimulating in its sense of freedom, of “vast flight”; and menacing in its sense of threatening chaos or implosion, “Thickening, deepening, blackening”.

This excellent video shot at Otmoor, near Oxford, captures the display before the starlings settle in their roost, building up to an astonishing climax, when the flock becomes almost impossibly dense.

The photograph is taken from a Guardian gallery of starling photographs.

GDT wildlife photography award for Leeds photo

November 17th, 2010 by lucy

Among this year’s GDT wildlife photography awards, winner of the “Man and Nature” category is this photograph of Leeds city centre, taken by Paul Hodson.  So where’s the nature, you might ask.  If you look at the traffic light, a small silhouette is visible against the amber: it’s a Mistle Thrush sitting on a nest.

Daubenton’s Bats hunting over water

November 15th, 2010 by Nick

A short and remarkable video from Springwatch in 2009 showing Daubenton’s Bats catching insect right  over the water. They hunting big bugs such as stoneflies and mayflies and so only need about a thousand kills a night, unlike other bats which hunt smaller prey and need to catch some 3000.

Are foxes dangerous to cats?

November 15th, 2010 by Nick

On a recent BBC wildlife podcast, fox expert Professor Steve Harris, Bristol University stated that the average urban fox will kill a cat every 6 years, and that some 500 cats live in every fox territory. So the risk is tiny.

A Bristol City Council leaflet writen by Professor Harris gives the follwoing advice:

This is very rare; a survey in northwest Bristol, where foxes were particularly common, showed that they killed 0.7% of the cats each year and these were predominantly young kittens. This means your cat is far more likely to be run over, stray or die from a variety of other causes.

Foxes are only a little bit bigger than a cat (males average about 5.5 kilograms) and are equipped with a set of sharp teeth. Cats have an equally sharp set of teeth, plus some pretty unpleasant sharp claws. If a fox tackles a cat, it risks severe injuries and that is the last thing it wants. Every night a single fox will meet many, perhaps dozens of cats and most encounters are either indifferent or amicable.

Cats and foxes will usually ignore each other. However, some cats are aggressive animals and will go for a fox, sometimes to drive it away from their garden or food bowl. Usually a fox will flee but if this is not practical and particularly if it is cornered, it may defend itself against the cat. Then both animals may be injured.

Finally, although foxes live in family groups and meet up periodically to play or socialise, they hunt alone. So stories of “packs of foxes” roaming the streets killing pet cats are totally fictitious.

Above photo from Wiki Commons of fox and pet rabbit by Oosoom.

Spindle webs

November 14th, 2010 by Nick

web across nettles

Remarkable photo from the BBC’s Autumnwatch a few years back of spindle trees and bushes (Euonymus europaeus) in a Dorset hedgerow infested with the silk webs of the spindle moth or spindle ermine (Yponomeuta cagnagella). More here with a video.

Spindle ermines weave silk webs to protect themselves from birds and wasps, allowing them to gorge on leaves for six weeks before transforming into the moth. Not known for being bright sparks, they sometimes mistake other objects  for spindle trees such as this car in Rotterdam (Image: Daily Mail).
Moth attack: spindle ermines moth caterpillars covered this car with a giant silk web in Rotterdam

British mushroom quiz

November 13th, 2010 by Nick

I found this short and fiendishly difficult quiz on British mushrooms. Quiz on FirstNature

And some facsinating fungi facts here from the BBC Apparantly there are more than 3,000 different types of mushrooms and toadstools in the UK.

And a series of PDFs to promote awareness and understanding of fungi from the BMS.

Omens of a hard winter

October 21st, 2010 by lucy

Just thinking of their Siberian haunts brings a shiver, and when Bewick swans arrive early in Britain it’s considered a sign of a cold winter to come.  This year over 300 landed in the Slimbridge Wetlands Reserve on October 18, two weeks earlier than in 2009.  Rather worrying considering the Cold Snap of January 2100.

A large crop of holly berries is another traditional omen of bitter weather.  Though this autumn’s rich fruit and nut harvest can be explained by the year’s stable and sunny spring, perfect for flowering and pollination.

Mammals in British gardens

September 24th, 2010 by Nick

92,000 people have taken part in the RSPB’s survey of garden wildlife, Make Your Nature Count, taking in 69,000 gardens in the UK. In addition to birds, the RSB asked participamts to look out for certain species of mammals. Above image: Nigel Blake (rspb-images.com)

Fourteen per cent  recorded the presence of moles, with half of these detecting moles regularly. Unsurprisingly, most moles were detected in rural gardens, being most frequently seen (or at least their molehills) in Wales in 25% of gardens, compared with 15% in Scotland and 13% in England. There are no moles in Northern Ireland.  Roe deer were recorded in 5% of gardens, with most sightings came from Scotland, where they were seen in 16% of gardens, compared to 4% in England and only 0.5% in Wales. There are no roe deer in Northern Ireland.

Hedgehogs were seen in 30% of gardens in urban areas, and more than one in seven saw them regularly. Hedgehog expert Hugh Warwick said: “Gardens are clearly very important for hedgehogs, a great example of a truly wild animal not only at home with us but also of great benefit to gardeners. “We should treasure the fact that they live comfortably in our gardens and so many people can get nose-to-nose with them.” The Guardian

A lucky 5%, in my opinion, saw badgers, including more than 20& in Somerset and Pembrokeshire.

The results:

Badger 5.50
Fox 26.23
Muntjac deer 1.91
Hedgehog 23.35
Roe deer 2.22
Mole 7.33
Red Squirrel 0.77
Cat 79.41

Wild mushroom season begins . . .

September 6th, 2010 by lucy

private-eye

Not what you want to hear at a dinner party.  Courtesy of Private Eye.

Best wild mushrooms app for iphone

September 3rd, 2010 by Nick
iPhone Screenshot 4

I’ve just downloaded the fantastic new mushroom app Wild Mushrooms of North America and Europe by Roger Phillips with its huge database of more than 2,400 photographs of over 1,550 wild mushrooms.  The app features edible, hallucinogenic, poisonous mushrooms, truffles and brackets, collected in the wild by the famous Roger and many other senior mycologists from both America and Europe. In addition to showing detailed photographs of the mushrooms from different angles, there’s loads of helpful information to help with identification, including a very useful key system which wil help you whiitle down choices; (details of size, shape, color, habitat). There is also a sign on each picture to quickly give you the idea of danger or edibility.

A total, total bargain at £1.19 from the app store.

British trees on the iphone

August 21st, 2010 by Nick

Treed is the best tree app I’ve come across. It’s basically a field guide to trees found growing naturally in the British Isles. The new version features all native species, plus most naturalised ones. There’s a very a handy key which helps narrow down identification automatically (you just have to click on leaft type, bark etc). Great stuff.

Trees included in this version:

Alder, Ash, Beech, Silver Birch, Downy Birch, Box, Purging Buckthorn, Alder Buckthorn, Blackthorn, Gean Cherry, Bird Cherry, Ornamental Cherry, Crab Apple, Wild Pear, Dogwood, Elder, Wych Elm, Smooth-Leaved Elm, White Elm, Common Hawthorn, Midland Hawthorn, Hazel, Holly, Hornbeam, Horse Chestnut, Juniper, Common Lime, Broad-Leaved Lime, Small-Leaved Lime, Field Maple, Pendunculate Oak, Sessile Oak, Scots Pine, London Plane, Black Poplar, Aspen, White Poplar, Sea Buckthorn, Rowan, Wild Service Tree, Whitebeam, Spindle, Wayfaring Tree, Guelder Rose, Sweet Chestnut, Sycamore, Walnut, Crack Willow, White Willow, Goat Willow, Osier, Bay Willow, Yew

More here

Best birdsong app for iphone

August 21st, 2010 by Nick

The best British birdsong app for iphone available at the moment is the onomatopoeically-named Chirp! Bird Songs of Britain and Europe

You can listen alphabetically, by song type and commonness, but best for all for me is the quiz which is completely addictive. The commonest British and Northern European birds are featured, with more birds promised soon in the updates.

This is a really great app for learning about birdsongs. Well done to the bright spark who made it. More here from itunes

See also wildflowers app

Beetles in the Bonsai

July 31st, 2010 by lucy

Watch out for this beetle.  If discovered, it should be immediately reported to Plant Health and Seeds Inspectorate at 01904 465625 or http://ww2.defra.gov.uk/

The Citrus Longhorn is an Asian beetle, accidentally imported with ornamental trees from Korea, China and Japan, and discovered at a Rutland school last week.  Like all UK sightings so far, it was found in a Japanese maple, but without a natural predator it poses a serious threat to a wide range of native shrubs and trees. Read the rest of this entry »

Foxes on the doorstep

June 8th, 2010 by lucy

An alleged fox attack on twin baby girls, while they slept upstairs in their east London home, has made front page news and provoked considerable debate.  As people swap their fox experiences, an interesting picture emerges of fox behaviour in an urban setting.

The comments posted in the Guardian suggest that the fox density in certain areas of London is very high, with not enough food to go round, in some cases resulting in a population of unhealthy, short-lived animals.  These city and suburban foxes have lost their fear of people and see them as a potential source of food, with some extraordinary encounters taking place: Read the rest of this entry »

How to stop your cat from killing birds

May 19th, 2010 by Nick

Blue tit feeding

The RSPB have released a checklist of top tips of how to stop your loving moggy slaughtering the local birdlife ( 27 million birds are killed every year  by the 7.2 million cats the British keep as pets). Amusingly entitled “Sylvester and Tweetie Pie can live together” it recommends:

  • Put a bell on the cat’s collar – an RSPB study shows that this can reduce predation of birds by 41%. The collar should have a quick release buckle and fitted properly
  • Make sure cats are well fed and cared for. This may encourage them to stay close to home and be less likely to wander
  • Keep your cats indoors around sunset and sunrise and after bad weather – birds are most vulnerable at these times as its when they are most likely to come out to feed.
  • Take your cat indoors if a fledgling is in the garden, until its parents lead it away
  • Avoid putting food on the ground for a few weeks where cats are known to catch birds. Use a bird table or higher ground where cats cannot reach it
  • Place spiny plants such as holly or an uncomfortable surface around the base of the feeding station to prevent cats sitting underneath it
  • Position nest boxes where cats cannot reach them or sit close to them (preventing the parents birds from getting to the box.

The photo is from the Guardian who note on this story “our feline companions are supplementing the £829m we spend on cat food every year with their own avian breakfast, lunch and dinner. Here