From a distance, they look like hay bales covered in snow. But close-up it becomes clear they are hollow. A mystified Ron Trevett photographed them in a field near Yeovil, Somerset. It occurred to him they might be some large-scale prank in the crop circle tradition but for the complete absence of footprints. In fact, snow rolls are a natural phenomenon, but more associated with the prairies of North America than Britain. Certain conditions are necessary for their formation: the right texture of snow, temperature and winds. Strong winds peel off the top layer of snow when it becomes sticky and bowl the roll along until it’s too heavy. The snow doughnuts, as they’re also known, look deceptively solid, as they can distintegrate in an instance.
Category Archives: Weather and climate
Countryside birds moving into urban areas
The RSPB says countryside birds are increasingly moving into towns because the big freeze has meant food is harder to find. They include on their list bitterns! More as well as herons and woodcocks. More
According to latest figures from the BTO, forty species have been turning to gardens for food with greater frequency during the current snowy weather, with particularly large increases in thrushes and buntings. Reed Buntings have increased by 134 per cent and Yellowhammers by 80 per cent. More
Guardian slideshow Birds spotted in the big freeze
See also Unusual birds in the garden
Good things about the cold snap
Freezing temperatures aren’t all bad for British wildlife, perfectly adapted to long, cold winters, which until recently were the norm. Cold weather helps to “restore the balance of nature”:
- Hibernating creatures (bats, butterflies, bumblebees etc) are less likely to emerge and then get killed off by a cold snap, as has happened in the past few mild winters
- Birds are unlikely to start nesting too early (again, as happens in mild winters)
- Flowers are less likely to emerge and then get killed off by late frosts
- Viruses, parasites etc are killed off, which will benefit their hosts. (Again, mild winters tend to allow disease vectors to multiply)
In contrast mild winters such as those we’ve seen between 1986 and 2008 bring about:
- Early emergence of flowers and insects
- Early breeding of many birds (sometimes before Christmas).
- ‘Summer visitors’ overwintering (eg chiffchaff)
- A major fall in numbers of winter visitors (eg Bewick’s swan and white-fronted goose), as birds stay further east of the UK.
Snow Watch are also collecting wildlife stories from people from around the UK. Read them here.
I thought this post by John White was interesting:
We do have a visiting barn owl but have not seen or heard him for some weeks. We have had visiting redpolls and fieldfares taking all the holly berries. Interestingly there have been very few starlings and sparrows around, and a very plump pheasant is missing. I must admit that we do not encourage the larger birds i.e. rooks, crows, jackdaws and magpies, but they still come. It seems that the three squirrels that live in the holly tree have decided to keep warm in their dray, and have not put in an appearance for days. Badgers have taken to the compost for food. They were very active in the autumn feeding off of our fallen fruits and digging up the gardens for slugs etc. Swans and geese that frequent the reservoirs and canals seem to be staying put.
Sleeping in an igloo
2010 Cold snap wildife news
We’ve put together this archive of news about the 2010 cold snap related to wildlife and climate. Hungry bitterns, cold badgers, river ice, English igloos, strange birds in the garden, George Orwell on the cold of 1940, the coldest place in Britain…that sort of thing. Read
Cold kills thousands of crabs
The freezing temperatures may have caused the death of thousands of velvet swimming crabs which have been left littering the shoreline in the Thanet area of Kent. So many velvet swimming crabs – or devil crabs, as they are commonly known – have been washed up in Westbrook Bay over the last week that people have struggled in some places to see the sand. More here
The cold snap – Orwell 1940
The Orwell Diaries is a remarkable blog which publishes George Orwell’s diary entries on the same date 6o years later. The entries are full of fascinating insights into the daily life of the author between 1937 and 1947 and include a surprising amount of observations on natural history. The comments by the readers are also, unusually, interesting. Here is his entry of 11th January from the cold winter of 1940:
No thaw. It would be possible to skate on the church pond, but unfortunately I have no skates here. The other ponds not bearing. Water beetles (the kind whose legs look like oars) can be seen moving about under the ice. When a brick lies in the bottom in shallow water, there appears in the ice above it a curious formation the size & shape of the brick itself, presumably something to do with the temperature of the brick when thrown in being higher than that of the water. Turned up a woodcock in the common lane. No rabbits in the field today. Birds very bold & hungry. Rooks in the vegetable garden, where they do not usually come. One or two primroses & polyanthi budding, in spite of the frost upon them. One of the elm trees apparently bleeds a brown-coloured stuff, sap or something, & large icicles of this hanging down, looking like toffee. Milk when frozen goes into a curious flaky stuff like flaky pastry.
Orwell had an enduring interest in natural history which stemmed from his childhood. In letters from school he wrote about caterpillars and butterflies and he had a keen interest in ornithology. He also enjoyed fishing and shooting rabbits, and conducting experiments as in cooking a hedgehog or shooting down a jackdaw from the Eton roof to dissect it. Wikipedia
Tips for going out in freezing weather
Devon polar explorer Ann Daniels offers these hot tips and more for enjoying this month’s Arctic temperatures.
- One mistake lots of people make is to wrap up warm with gloves and hats and scarves then go out with thin socks and trainers on
- If you have boots you should wear them and thick woolly socks or even two pairs – but make sure not to constrict the blood flow to your feet
- You should wear layers of clothing so that warm air can circulate between the layers
- You lose a lot of heat through your neck so a scarf is important. “If you don’t keep your torso warm your body will go into survival mode and draw heat from your extremities to the heart and lungs.
Also from Devon video of Trapped swans freed from frozen River Exe
Baby badger rescued from the cold
This five-day-old badger cub was on the brink of death after being left abandoned in the snow somewhere in Devon. More ridiculously cute photos and the story here
From the excellent badgerland.co.uk:
Badgers have unusual breeding patterns since mating can take place at any time of the year. After mating, badgers exhibit what is known as delayed implantation. They keep the fertilised eggs, in the womb in a state of suspended development until they implant at the end of December. Cubs are usually born during the first fortnight in February in the south and west, but sometimes a little later as you go further north in the UK.
So this cub was born rather early in the year. I wonder if the mother was moving her cubs to a warmer sett and this one got dropped, or did it just remove it from the sett because it couldn’t feed it. Please drop me a mail if you can enlighten me on this.
Animal welfare during cold spell
Defra has released this advice on caring for farm animals and pets during the cold weather, including this note for horse and pet owners:
Where pets (such as rabbits and guinea pigs) are normally kept outside in hutches during mild winters, eowners should consider moving them into garages / sheds to provide additional thermal insulation. Where cages cannot be moved additional protection or insulation should be provided wherever possible.
It is also important to ensure a supply of drinking water. Ice should be cleared from drinking water containers and the spouts should be defrosted regularly.
As with farmed livestock, horses and ponies usually kept outside during the winter should have access to shelter at all times and a regular provision of feed and water ensured. Where such provision is inadequate, owners should consider moving the animals and/or permanently stabling in the interim period Water supplies for all horses and ponies should be checked regularly and alternatives sources supplied if mains failure occurs.
In an emergency you should contact the RSPCA for help and advice. Read their advice on animals in the cold spell here.
Estuary ice
Stunning photo taken on 9/1/10 of the River Dyfi estuary near Aberdfi by John Mason on the UK weather forum (more photos from him), who notes ” ice-floe interacting with a mooring-buoy at Frongoch. The noise was amazing!!“.
Looks more like northern Canada rather than mid Wales.
Severe weather advice
The Met Office has released this useful advice if you really need to go out in the wilds. They recommend:
…wear several layers of clothing and keep dry to prevent loss of body heat. Watch out for signs of hypothermia — uncontrollable shivering, slow/slurred speech, memory lapse and drowsiness and frostbite — loss of feeling in and pale appearance of fingers, toes, nose and ear lobes. Keep moving your arms and legs to help the blood circulate.”
Unusual birds in the garden
Birds are struggling to survive in the harsh winter conditions but it’s a good opportunity to watch them without having to move from the warmth of a living room. Those keeping bird tables well stocked and maintaining a supply of unfrozen water have been recompensed by unusual sightings: the RSPB have received several calls about woodcock and snipe visiting gardens. People who have long dreamt of attracting fieldfares and redwings are finally being rewarded, as these species lose their habitual shyness.
Competition among birds is fierce, as comments on Birdforum.net reflect. One poster heard loud screeching in the garden and saw a house sparrow had been plucked from the bird table. By a sparrowhawk perhaps? In fact, it was dangling from the bill of a collared dove, who had grabbed it by the wing as they fought over food. The sparrow managed to struggle free.
Photo of woodcock posted on Flickr by Ian Taylor
Ideas for walking in the snow
Yowie snowshoes were designed, fittingly, in Australia. They look like beach sandals attached to rubber flippers with a deep hexagonal tread and metal cleats. Extremely versatile and user-friendly, once you’re strapped in, with body weight nicely spread out to avoid sinking, you can enjoy snow walks on the flat or more challenging treks up and down mountains. The material reportedly offers better insulation from the cold than more conventional heavy-duty snowshoes. They are also lighter, cheaper and easier to stow in your ruck sack.
Another idea is to use ice grips – unobtrusive devices you can attach to your usual footwear to radically increase traction on slippery surfaces.
How to build an igloo
Bored with snowmen? Why not try and take full advantage of the big freeze and build an igloo in your back garden or local park. Instructions here from The Guardian.