Rutger's English Blogg

White blood cells 2013-02-28

Publicerad 2013-02-28 19:17:38 i Allmänt

Eosinophils, neutrophils, basophils, as some of these white blood cells are called. They are grainy in structure, but the most characteristic is that the nucleus is divided into different lobes so sometimes it looks like there are multiple cores, sometimes it looks like a U. We stained them with methylene blue.

As you may know, most of the white blood cells reside outside the blood vessels. We have in the body about 2.5 kg of white blood cells and approximately 1% are in our blood vessels. There is a concentration of them around our intestines, especially the colon. This is due to the large intestine where, where we have most of the approximately 1015 bacteria that we carry . 10 times more than our own cells. It is estimated that we have about 500 different species of bacteria in the large intestine. These we need to protect our body against and if we did not have our white cells or immune cells that we could call them, we would have no chance against the bacteria that is nature's smallest and most efficient decomposers. They would like to break down our body if they could. For them, we are only a large portion of wandering nutrition.

White bloodcells with diffent shaped nucleus.




Neurons and synapses 2013-02-27

Publicerad 2013-02-27 11:11:22 i Allmänt
Each neuron can form synapses (connections) with up to 10,000 other neurons in an incredibly complex system. Nerve impulses can on the way pass one billion billion synapses. With these synapses and the circuts the memory will be storred. The memory capacity of the brain is today estimated to be between 1 and 1000 terabytes. The nerve impulse is electric and runs along the outside of the cell membrane, but when this impulse arrives at the synapse, then it is mediated by small molecules, neurotransmitter. See picture.
When you learn something at least 50 million synapses per second are formed, according to what I read earlier.

Recent research on the brain and genetics of this shows that humans have a superior ability to form synapses compared to other primates. This is by strengthening the best synapses and eliminate the less good synapses. Real efficiency.
The top of the gene activity behind the synapses is reached at five years in humans, unlike chimpanzees who reaches this at one year. "Our findings suggest that the human brain is extremely plastic and sensitive to environmental impact during the first five years of life," said one nerve cells and brainresearcher named Khaitovich. "Our study revealed a potentially important mechanisms involved in the early development of human cognition."

The research on nerve cells has also shown that a nerve cell must have the same impulse at least four times to form permanent synapses for memory to become what we call long-term memory and it requires many synapses to form a memory.

For the brain to learn things good brain must get many impulses. We need practice, practice and practice again for the brain. To be really good at something about 10,000 hours of practice are needed.

With this knowledge, I understand  Kairos Future's observation that brain research and pedagogics does not speak the same language, does not speak to each other. Homework and practice through training and re-training is not so popular. Students would like to find a shortcut that does not exist. Some schools like to highlight specific pedagogies to attract students. The first students ask about today at the school information about it on the natural science program if it is much homework. Studnets before  would never have dreamed of that question. We usually respond a bit vague.

If we start talk about this info that the school should follow the latest brain research and that there is much homework and exercises it would not be popular. But so it is.

Besides the teacher has to create a good environment for learning and Kairos Future has recieved the usual description from the students of a good teacher. He should be knowledgeable and committed, have humor but at the same time be strict and fair, that is able to keep track and order.

Various studies have shown that successful teachers are knowledgeable, passionate about their subjects, are interested in their students, thus engaged. What type of pedagogics used plays a minor role. Obviously using IT-technology is increasingly important today. But the personal knowledgeable and commitment is still as important. With this, Kairos Future pinpointed out a weak point.




Today's manufacturing jobs 2013-02-22

Publicerad 2013-02-24 22:48:15 i Allmänt

When you talk about manufacturing jobs to people they don´t think about high status work despite the fact that the dirty industrial jobs are gone. Today, many industrial jobs are qualified. As industrial workers, you might be an operator and perhaps manage a CNC machine. Cutting machines of various types but also with newer type technology as waterjet cutting and plasma cutting machine. You must be able to read CAD drawings and so on. Industrial work has become increasingly high-tech. Quality is extremely important, demands are high, complaints costs too much. Are you working with an assembly industry, you need to be dilligent and careful. An airbag must not be mounted in a  wrong way, it must work when an accident happens.

On one page of SVT can we read "The shortage of skilled industrial workers in Sörmland and Mälardalen can force suppliers to the automotive industry to move production overseas., Says Hans Rainer who is site manager at Automotive Suppliers in Mälardalen." This was written in 2006 and student in industrial programs have not increased. The status has not increased. Admission scores for Industrial Technology program is in the bottom area.

The interest is not so great and it's been moore popular to search on Handicraft program to become a hairdresser.

Thinking of that, these "gurus" who travel the length and breadth of our country and say that we have left the industrial society and entered the knowledge society and to talk about the industry as something that belongs to yesterday, have a great responsibility. They speak so disparagingly of jobs that are important to society. And think about all the others who just repeat this. We had a little guru to visit the school that put knowledge and innovation in contra st to each other. As he said knowledge we can buy cheaply in Asia but we must be innovative in order to compete.
But isn´t it just so that innovative people also tend to be very knowledgeable people.
Why not rather say that as in the second article of Kairos Future, where they promote the idea of "industry .... as the basis for a high-tech knowledge-based society"

The picture shows a water jet cutting machine for cutting plastic, rubber, steel, fiberglass and aluminum discs. A thin beam with high pressure water cutting through the material. The machine must be programmed with the help of a computer. An elegant way to cut various materials with water.


Knowledge Society? Industrial Society? 2013-02-21

Publicerad 2013-02-21 22:30:42 i Allmänt

As long as I've been a teacher, I have been told that we have left the industrial society and live in a knowledge society, a post-industrial society. Most recently, it was a new variation on this theme. A report by Kairos Future on the future role of the teacher says that "society is in a turbulent period of change from industrial society to a global society of thought." Some say that this began to happen in the 70's. The oil crisis in 1973 is seen as a breakpoint.
Seen from a horizon of the GDP, the major changes is that agriculture has been reduced a lot by great efficiency and public sector increased its service share so much. Staffing levels have decreased and increased.
The industry has not changed as mucch as these sectors.
Sure, some industries have moved out, which is part of the explanation for the decline from around 40% to 32%. At the same time China have been heavy industrialised.

Is it right to say that we have left or are leaving the industrial society and entered or are about to enter a knowledge society / global society of thought?

Industrial society, I would say has always been a knowledge society where innovation and research has led to theprogress of development. If we look at the major changes that occurred in the late 1800's when the light bulb and powerstation was invented by Edisson. One of his associates Nikola Tesla invented alternating current and alternating current generator. These two people came to mean much. Edisson is very famous, Tesla is poorly knowwn, but the question that maybe Tesla was the greatest of them. Please read
"Tesla, the man who invented the 1900s" and

Tesla was a better mathematician than Edison but it is said that they had one thing in common: "The only Tesla and Edison had in common was that they only had a few hours of sleep per day. Often they worked up to three days in a row." When you just need to sleep a few hours per day, you can get further in their field and it has been so with several great scientists.

During the 1900s, this knowledge has been used and the whole world has been illuminated and thye light has totally changed the way people live.

That is what we see in the picture, we can thank Tesla for that. With AC you could locate power stations outside cities. If the world had followed Edison's idea all cities would have had a lot of small power plants with few blocks in between with a major impact on our environment and not as effective. This illuminating of our world is still continuing and is a result of the industrial society.
At the end of the 1900s, we also had a big change in commication with IT-technology plus our dear mobiles beloved over all thingsby our students. But all this is produced by the industrial society.
Industrial society has always been knowledge-based and has always developed the knowledge as the  industrial societies development is based on the research and inventions. We can not distinguish between an industrial society and a knowledge society.
Can we really leave the industrial society that is the basis of our modern civilization?

Think about  the projections of the future. By 2050, it will be another 2 billion people. They need housing, clothes, mobiles, plus various other things and foods produced using industrially produced agricultural machinery. Energy production needs to increase even if we in the West would be forced to lower our standard. More and more people want to have electricity. We have a continuing urbanization of the world's population and which means much tothe cities and its communication needs to expand and occasionally be replaced. Only an industrial society could develop this. It is impossible to leave the industrial society. Should we also start with some space tourism our industries are needed.

In another publication of "Kairos Future" they write about the big changes in the future.

"2013: The year of great change, to think differently or maybe in an opposite way"
"For decades, we have learned that future work is about service and knowledge
and that the industry is a thing of the past. We have also long since relegated the idea that the work runs out and we don´t need to work, such nonsense, we believe in no longer.
History has repeatedly shown how crazy it was. The jobs have not run out. "........

"At the same time the industry goes towards a conceptual renaissance where it is no longer seen as a relict from ancient times, but as the basis for a highly skilled knowledge society.
More and more areas start to yearn for a return of industrialization and David Cameron described this some time ago as one of the biggest challenges.
At the same time politicians talk about reindustrialisation industrial production also move home, albeit on a small scale. Esska has won pacifier manufacture
from Thailand, Stiga pulkproduktionen from China and even Apple has declared that
they'll take home manufacturing to the U.S.. More are in the way.
Finally, what is it we can compete with in the machine age? It is thinking
Perhaps the new black? And if so, are school and college prepared for one
thinking society? Not if you believe one of this fall's debates on DN Debate or
American analysis Academically Adrift. "

How then, will teachers meet this future? It is discussed by Kairos Future and we'll come back to it.

Would probably say that our society has never left the industrial stage, but it has been complemented with IT-technologies and knowledge continues to increase.
And the whole world is still dependent on Tesla's elegant inventions.

Swedes a stone-throwing people once upon a time? 2013-02-18

Publicerad 2013-02-17 22:47:50 i Allmänt

There were many food riots in the past. When it was bad harvests and grain prices rose while distilleries for strong alcoholic beverages continued like nothing had happened, it was riots and the police tried to stop it but could not always stop these hundreds of people rioting. They threw stones at police, smashed windows on rich man's house and administrative buildings with stones. Many times even the military was called in. The people were protesting that too much grain was spent to make strong alcoholic bewerage and bread prices rose which I understand. People also protested when the rich in society partied with tax money, I understand that too. When this happens today, I also think it is wrong. Or to use tax money to locate courses for municipal employees in foreign countries when there are both facilities and good opportunities at home. Tax money should go to the care, school and welfare at home.

One thing that I noticed in the book was about Karl IV Johan. He was elected as king of Sweden because they needed a strong king in the wartimes as it was then in the early 1800s when the Napoleonic wars raged in Europe.
Unequivocally this new king meant much for Sweden during these troubled times. Read an article in Svenska Dagbladet that the king paid all of Sweden's national debt with his private money. It sounded very good but this is questionable because it was money that came after the sale of the island of Guadeloupe in the Caribbean to France. Sweden got the possession of the island as thanks for the help in the war against Napoleon. Was it Sweden or Karl IV Johan that was entitled to this money?
When Karl IV Johan had reigned in Sverigre for 25 years, this would be celebrated with a big party 1843. The city's 500 most important residents were invited. Through some papers it emerged that the party would be paid by taxmoney. Many felt that the city's money that paid for poor relief should not be used for a royal party. Protesters marched through the streets and started throwing stones at the windows of the houses, some 30 houses got broken windows and the police lost control of the demonstrations. The crowd moved to Stockholms theater and inside there was a gala performance. The theater was taken and both actor and spectators had to flee head over heels.

A recensent writes about the book "Surprisingly very familiar from Sweden and the world today and yesterday: Masked protesters, throwing stones, hunger riots, bombings, racism, letter bombs, anthrax attacks, muslim terrorism, xenophobia, anti-racism, football hooligans, assaulted journalists, potatoes rescues the poor, religious extreme sects, opposition in mental hospitals, protests against food used for other than food production (as spirits, now biofuels). ( Hunger riots do we not recognize in our country today)

Today, we also have stone throwing people but now it's not so much the Swedes as immigrant youths throwing stones at police, firefighters and paramedics. Particularly well known is this from Malmö and we've all read about it and seen it on TV. There is no question of any hunger riots earlier. A derogatory image in an instagram was what started it all in Gothenburg last autum.

Stones to rescue personnel in Rosengård are familiar to all. * / stoning-to-police-on-fire
Fredrik Ekelund, a wellknown writer from Malmö, has written about this. Read what he wrote about stone-throwing in Rosengård riots when it happened there. It went on for several days and the police failed to stop it, but as through a magic stonethrowing were stopped by leading muslism men / gang leader.

Fredrik Ekelund writes "When Besam Mahmoud, self-appointed spokesman for the Islamic Cultural Society in Rosengård, speaks of" discrimination "and" us Muslims "should be clear about who he is and what his organization wants. In his world, integration is not a good thing in itself . It is the enclave and the self-willed alienation that is the case and the unwillingness to integrate as the Sweden Democrats. An interesting thing here is that the representatives of the Islamic Cultural Society was low at the start of the riots. But the same day, day five or six, they told the parents of the association to go out and put a stop to it all, then everything stopped up, as of a given command. The question to ask is, of course, why did not Besam Mahmoud and other leaders that had responsibility stop it the very first night? "
You can also read what he writes about what's happening in Malmö:

Some Muslim groups express clearly, we do not want to be integrated into the Swedish society. It is haram, a sin.
The following, you can read "The integration of Islam and Muslims in non-Islamic society is haraam and is at odds with the message of Islam because integration means sacrificing some elements of Islam to it, and the Muslims will be part of whole, namely the Swedish society and Sweden., the big question that remains unanswered is what parts do we need to give up? Concrete examples are never given, and partly because this false thought's proponents do not have a crystal clear idea of its own message, and partly by the fear for the overwhelming and uncontrollable rage these examples will awaken the Muslims, who can not, or may not like such a large-scale corruption of Islam. "

Nalin Pekgul have been outspoken and told us about this. Please read what she says in an article in DN. Muslim men working for a greater influence of their religion and they do not want their young people to become intregrated.

Mona Sahlin said once ('she said it several times) "We have failed with our integration policy" - TV1 September 28, 2001
The thing is that it is not easy to integrate persons for whom it is haram / sin to become integrated. They want their own Muslim community, preferably with Sharia law. Luckily not all muslims are like that.

What will we finally say about the stone-throwing Swedes. Mats Adolfsson concludes the book like this and thinks of the development since the 1930s: "A new self-image was formed. Rear tinted an image of an eternally peaceful, kind, neutral and sometimes wimpy Swedish, who would rather tie your fist in your pocket than protesting openly and who trust the authorities. Engelbrecht, Dacke and 1743 years of rebellious Dalesmen probably would not have recognized themselves in the description.
Will it be the same trend with the stone throwers alive today?

Protected fishing areas 2013-02-14

Publicerad 2013-02-14 12:34:42 i Allmänt

The report is about a preserve called "Tortugas Marine Reserve" which is part of the "Florida Keys National Marine Sanctuary" and is located at the far end of the group of islands called the Florida Keys. This reserve was established in 2001 and now it has been evaluated and the report said it is a success for both commercially fishing as well as tourism industry and of course biodiversity. A summary of the report is available at the following link:

1. Overfished species such as black and red grouper, yellowtail and mutton snapper increased in presence, abundance and size inside the reserve and throughout the region
2. Annual gatherings of spawning mutton snapper, once thought to be wiped out from overfishing, began to reform inside the Reserve
3. Commercial catches of reef fish in the region increased, and continue to do so; and
4. No financial losses were experienced by regional commercial or recreational fishers

This research showed that protected areas quickly recovers and the recovery spreads beyond the area to benefit commercial fishing.

Black. grouper

Yellowtail snapper
Mutton snapper

The name Tortugas comes from the Spanish word for turtles. Here there were plenty of turtles in the 1800s. They were also subjected to fishing and we hope that it will recover in the same way as the fishes  though it takes longer time for this because turtles have a longer reproduktion time than fish. There are seven species of marine turtles. All seven species of marine turtles are either Listed as 'Threatened' or 'endangered' under the Endangered Species Act

Tortugas is situated where different  sea currents meet, making the area a very rich marine area and as a result, there are over 400 species of reef fish, including all species of groupers. It is also an important spawning area for tuna. About 40 species of sharks are seen in the area, some of which are just passing.


The importance of clouds 2013-02-12

Publicerad 2013-02-13 12:36:54 i Allmänt

Have previously written a about my experiences in the Philippines. Wiill take it up again.
All the times that I've been in the Philippines has always been warm swimming water but not this summer. This year it was slightly chilly. I was so surprised. Even in Bohol where I spent some days, it was not as hot. As you dive in the Philippines, there is no need for a warming wetsuit andif you dive lower than 10 m deep and comes up in the surface water, you feel the the very good "hot tub" water.
The warmest I have ever experienced was in 2004. We would swim right outside where we lived. My youngest daughter, who then was six years old, was running out before me in the water but stopped and start scream and ran back. What was it I asked. The water is burning she said between sobs. Thought it was strange for water here to be so hot. I put in my foot, and yes it was hot so it almost hurt. I took my daughter in my arms and took a few quick steps through the shore water and out in just over half a meter deep where it was acceptably hot and where I could put down my daughter. Had someone told me this, I had hardly believed it but I got the experience myself. So hot, it has only been once. And now, last summer it was slightly chilly, no wonder that I was surprised. Next time when I come here, I will bring a thermometer with me. This was at the same location

I discussed what happened with my daughter yesterday and asked her if she remembered what happened. Of course you never forget such a thing.

What will the explanation be that this beach water felt cold last summer. In the month of July is the rainy season and normally it rains bursty but in between, the sun shines so the sun can heat the water. Now it was compact cloudy both night and day. My daughter who is now older and of course has her own mobile with an installed app on the phone so we could measure the air temperature. We discovered that it was the same temperature both day and night. 26 or 27 degrees around the clock during the day when we measured the temperature. The clouds have an amazing ability to level out the temperature differences between night and day. Limits solar radiation during the day and retain heat during the night. I did not notice any difference on the UV rays. I was almost as red as usual. UV rays can penetrate clouds better than visible light.

The radiation spectrum. No gamma rays coming from the sun

About half of the sun's radiation is radiant heat / infrared and the other half is visible half lljus plus some UV. Water vapor absorbs most of the heat radiation, and that is why infrared telescopes are built on high mountains like Mauna Kea in Hawaii. Visible light penetrates better. Clouds can reflect both types of radiation. See the diagram of the solar radiation wavelengths of 100 nm (nanometers) to 1 mm. All radiation to the right of visible light up to one millimeter are heat radiation, IR radiation.
A little reading about cloud meaning:

Then we have light absorption in liquid water.

This applies to liquid water. Visible light penetrates better. Blue light penetrates more than red light. Red light is absorbed 100 times more than blue light but the blue light is scattered more in the water giving the water the blue color
A couple of other diagrams of how the light penetrates into the water. The first is of water in shallow seas. But the strange thing is that the light penetrates more in the deep sea see chart below. Notice how badly IR radiation penetrates. It is stopped at the surface.

Ir-rays heats up only the top millimeter. When the sun don´t shine directly the water is not heated. There must be a cloudless sky that let enough sunlight through for the water to warm up a bit more. This was what I experienced in the Philippines.

It is not only water that is heated by visible light. How much light is transmitted through the clouds is important for the climate. Less clouds and more light rays reach the earth's surface and it becomes more heated during the day on land and more heat is absorbed by the oceans.

Have there been any changes in cloud cover over recent decades? Check the following chart of the cloud cover in the tropics and the simultaneous warming. it is interesting to examine the graphs from 2000. Both graphs are essentially horizontal. Some researchers say that with this small difference in the clouds we can explain the warming of recent decades.

An interesting new scientific study from the USA shows that solar radiation has increased noticeably. It is entitled:
Variability of the surface radiation budget over the United States from 1996 through 2011 from high-quality measurements
To explain this increase is said that " This SW brightening is attributed to a decrease in cloud coverage ".
Cloud mass  has decreased slightly and this means more than the increase of CO2 in the atmosphere write the authers.
Even the IPCC climate report writes about the clouds importance.





Bad weather gives rebellion 2013-02-08

Publicerad 2013-02-09 11:36:54 i Allmänt
Please read Brian Fagan's book "The Little Ice Age" which deals with how the weather affects policy and how it was during the period known as the Little Ice Age (ca. 1300-1850). There were more crop failures than usual in Europe during this time. In the late 1600s, it was such a severe crop failure here in the north that one-third of the Finnish population died of starvation. He also tells us more about the French Revolution.
Read more about his book at
Science News Feb. 9 2013 tells of a new study on Europe's climate and weather by Ulf Büntgen working at a research station in Switzerland, Swiss Federal Institute for Forest, Snow and Landscape Research. He and his colleagues have done extensive tree-ring studies from northern Slovakia to study summer temperatures from 1040 right up to 2010. He then found that the major social upheavels have coincided with cold spells. When it's good weather and good harvests, and when people have enough to eat people do not want to rebel. It is hard to fight. Certainly there are mad kings that want to expand the size of there countries and might defend a particular religion, but when it is crop failure due to poor weather masses become restless and begins to move.
The article is called: Filling the gaps in the Eastern European millennium-long temperature reconstructions. Publiseh in Proceedings of the National Academy of Sciences.

Role of top Consumer 2013-02-07

Publicerad 2013-02-07 22:59:28 i Allmänt

In the ideal world, the top consumers/predators are an important role in keeping the balance of the ecosystem. If there are too many of any kind predators will peak consumption of them, so that this species does not crowd out other, thus maintaining the biodiversity.
But the ecosystem may also adapt to the predators consumers. If the top consumers are too many, they can at least locally eradicate certain animalspecies. On Svalbard reindeer seek shelter in between the buildings to get away and be protected from predators.
What will now happen to the implanted wild reindeer in Finland now that wolves have multiplied significantly? The inplanted wild reindeer are of forrest type and not the ordinary one.

"In Kainuu is the key issue predator policy. The wild forrest reideer numbers has a short time been reduced to about 800 individuals. The biggest reason for the decline is the large predators, wolves, bears and lynx., It's too much predator in the area and thus a threat to the world's last forest reindeer. Which we choose, the forest reindeer and wolf are the alternatives. Worldwide, there are over two thousand forest reindeer, although there are a few hundred thousand wolves. You'd think that the choice would not be difficult ........... ., there is not much time, it is now at the eleventh hour that we can save forest reindeer. " Says Lauri Kontro, a finnish journalist.

Professor Eirik Granqvist drew my attention to what happened, in the news that some locals in Perho have taken matters into their own hands and chased more wolves than they probably would be allowed to. According to media reports, 17 people were out hunting wolves. Three wolves were shot and six hunters are now under arrest. One of those who had hunted has also committed suicide because of all the attacks tells Granqvist. Granqvist is accusing authorities to safeguard the wolves  more than people in rural areas and Eirik was very upset about this. Eirik is a person who has taken a clear stand for the rural people against the wolves.

What made the people to take the law into their own hands? They could certainly have figured out in advance that they would have problems.  saying it had not received any information about wolf attacks earlier in this area.

This sounds very strange. No problem with the wolfs and still these people took the decision to hunt wolfs and one of them was senior in wildlife management and has now renounced all assignments. Why did they take this decision?

In the future we may hear more about what it was that led to this desperate wolf hunting.

From Ukraine come reports of problems with wolves that go into the villages.

Goji berries 2013-02-06

Publicerad 2013-02-06 21:31:35 i Allmänt

The taste was like raisins though a bit more bitter. The berries are also known as wolfberry in Swedish. Belongs to the family Solanaceae and it is also a relative of tomatoes. Discovered that there is a lot written about how amazing these berries are with its content of antioxidants, vitamins and minerals. The berries grow in northern China and is used in particular Chinese medicine. See photos from a blog of culture of these berries. As big as a small fruit tree if allowed to grow more or less freely. I paid a kilo price of 270 SEK at the ICA, but if I buy a small package online from a health food, the price is about 400 SEK per kg. If you bay larger packages the price will be about 270 SEK same price as ICA.s little bag.


What are we to compare with in terms of our own berries? Blueberry perhaps? The question will last to another time.
Cultivation in China

A bird's thoughts and conclusions 2013-02-04

Publicerad 2013-02-03 22:55:49 i Allmänt
"I and almost all of my bird friends like cities but cities must meet certain criteria in order for us to recommend them. A must are large parks with plantings of shrubs and flowers, also a mixture of different tree species, both hardwood and softwood, It must be enough ponds and streams, we really prefer the rich man's areas where there are more plants with various flowers and shrubs and larger spaces between the houses. What we do not like is the big house with mirrored facades that fools us with their reflections and where we sometimes fly into windows and breaking our necks.
There should be proper walls so you can see what it is and they should have ledges where we can sit and rest before for the next flight, but also build stable homes.

Even those of us who specialize in fish has recently discovered cities. There are ready made nests in several locations. (see picture below)

More and more of us who are not so common has also discovered the cities so perhaps we will become more common in the future. Then we would recommend architects to consider include frescoed design. Plantings and grass roof with flowers that are inviting to insects and then we need not always to fly down to the ground for food.

We have also discovered that life in the city is more hectic, so we have to sing louder and faster and we can do that, no problem, and sometimes we are so many together that we can even drown the noise from the traffic. Our relatives out of town, yokels sing so slowly and more quietly.
Then there are not so many birds of prey, another plus with the city. Maybe, they will also discover the benefits of the city and increasing as time flies by.

Another advantage of the city is that it is warmer than the surrounding areas so you do not always need fly south and then we have time to add more kids and like many people who want to hear us sing. In several cities, we are now more birds than people. But unfortunately even cats like that there are more birds. You see the cats, this misery to the four-legged creatures that people prsists to view as a cuddly toy. They are our worst enemies in the city especially in the suburbs,but even rats and other wood climbing beast as the American possum, Virginia opossum. If people just keep there numbers low we will multiply and sing more. In many residential gardens we are invited to food with free housing and we never say no. And you, when working on your home leave some little tiles on one side so we can more easily come in and simply drag both grass and tufts of hair to make a comfortable place fo our toung ones.

So keep planting flowers and trees between the houses and keep after your cats and why not even keep them in the ´rope that you do with your dogs then we will really multiply us. "

Some references:




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