Lighter evenings from next week!

Even though the mornings get darker for a while yet, the evenings start to get a little bit lighter here just before the winter solstice.  I think this will depend on your location.  By the end of next week the evenings here stay lighter by 1-2 minutes. By the end of January it is very noticeable. The change is slow at first but speeds up: by early March it is light until 6.30pm. I think the rate of change follows a sine wave with the fastest change around the equinoxes.

Although there is something nice about cosy evenings in, I prefer light nights.

More on over-wintering swallows

Well, apparently it did happen in 2008 and again in 2009.

See http://www.telegraph.co.uk/news/earth/earthnews/3336271/Climate-change-confuses-migrating-birds.html . This details BTO observations of a single swallow in a Cornish village between December and the following February. As our climate warms more swallows may decide to give the 12000 mile round trip south a miss. It is a chancy thing, as a cold snap could see off all the insect food.

The image of the swallow is actually located on the RSPB page linked below. It will be deleted immediately if so linking infringes any copyright. I don't think it does as it still "resides" on the original site.

See also http://www.rspb.org.uk/discoverandenjoynature/discoverandlearn/birdguide/name/s/swallow/ .

From a Yahoo group in 2009:

Records of birds hanging on (over winter) include single Swallows at Penzance and Marazion in Cornwall. The latter site was home to four birds until recently, with an earlier cold spell killing three, and the last bird is surviving on insects in a 20m by 4m patch of seaweed washed up against the sea wall. This is remarkably similar to the earlier winter occurrence of four Swallows at an oil refinery in Pembrokeshire, with a single bird surviving until at least 6 January.
Mark
N Ireland

Labour policies

See http://www.bbc.co.uk/news/uk-politics-30417955 . I don't much care for many Labour politicians such as Ed Milliband and Yvette Cooper. I am totally skeptical that Labour would really cut the underlying deficit. On the other hand I quite like David Cameron (Conservative) but feel the coalition could do more to help those in genuine need and be harder on those with inherited wealth and privilege: the Tories still come over as a bunch of toffs.

At the moment I have no idea who I'll be voting for in the General Election next spring.

Over-wintering swallows?

A swallow was seen in South Devon just a few days ago. I have seen swallows in the South Hams as late as Dec 7th.  It makes me wonder if a handful now stay for the winter, and survive, and do not migrate to Africa? Certainly in places like South Cornwall, South Devon and the Channel Islands this must be a possibility if the weather is mild and there are enough insects around.

I have seen no records for swallows in January in the UK. Such records would tend to suggest over-wintering. Those that remain late could be indicative of very late broods or those that somehow lost (if they ever had it) their ability to migrate and perished when the weather turned colder.

Here in East Anglia, I rarely see a swallow before April 7th. When they return from Africa it is an important day for me. Swifts are usually first seen here around the end of April. Hearing swifts scream in the spring air makes me glad to be alive: it reminds me that all is still well with the world.

At the moment, we are approaching the shortest day with long, dark nights. Long light evenings seem a way off. Mind you, in just a few weeks' time the nights start to shorten and the days start to get longer. We'll blink and it will be spring again.

We are very lucky to have our seasons as each has its special features to be enjoyed.

Earth's water may NOT have come from comets

See http://www.bbc.co.uk/news/science-environment-30414519 .

Rosetta's probes have indicated that water did not come to Earth from comets. Results were posted in the journal Science. This contradicts some earlier analysis of water on other comets.

Al Jazeera news

See http://www.aljazeera.com.

It is surprises me how often news items on this Middle Eastern news channel never appear on the BBC. Sometimes it is good to look at the news from different angles to be sure it is reasonably free from bias. The BBC is pretty good, but it sometimes misses important international news.

Sepura shares

My old company, Sepura PLC - I am very out of touch these days - makes TETRA radios which are widely used in public security. Today,at 1600z, the shares were up to 149.75p. I wonder  if its shares are seen as a safe haven when the world is uncertain?  Certainly, the company has always been profitable as far back as I remember. When first floated, shares were 140p.

Meanwhile, the FTSE 100 has been drifting lower on international worries over growth and EU issues.