Categories
Photos of Quebec

On The Road (3)

Province of Quebec landscape in Autumn.
Province of Quebec landscape in Autumn.

On the road in Chaudière-Appalaches, a beautiful region in the province of Quebec, I saw an interesting landscape in my rearview mirror. This was the perfect start for autumn photography.

Rather than getting out of the vehicle to capture the scene and its autumn colors, it seemed to me that a modified « frame in the frame » technique could be applied very well to capture most of this bucolic landscape.

In order for the photo to be sufficiently in focus, it is necessary to stop the engine. Otherwise, the minute vibrations are transmitted to the rearview mirror, making it impossible to obtain a correct focus, even when using the manual mode.

The photographic composition is determined in the rearview mirror by a zigzagging path through houses and forests. The leaves are starting to change color and the buildings in the foreground as well as the shades of green in the fields help bring the scene to life.

Click on the link for more photos of the province of Québec on my blog.

Categories
Flight Simulation

List of the Orbx freeware and payware airports. Halloween 2020 edition.

I have reviewed and edited my list of the Orbx freeware and payware airports, with runway description and airport elevation. It includes most airports that were created up  to Halloween 2020.

The addition of airports are based on what Orbx releases on its “Orbx Release Announcements” section. There are airports for Microsoft 2020 (MSFS), X-Plane, P3DV4+, AFS2 and FSX.

Payware airports often come with secondary, smaller virtual airports included in their package. The data is included in the list.

There are several airports included in the older Orbx regions on the west coast of USA that are not shown here. So the list is not perfect, but it does help the flight simmer. For the rest of the planet, the list is pretty accurate.

You have access to a free download PDF file on my website.

Have fun!

Categories
Environment Photography

Blue Jay in Autumn in Quebec City.

Blue Jay in a Russian Mountain Ash tree.
Blue Jay in a Russian Mountain Ash tree.

The picture above, taken with a Canon 5DS R full frame camera equipped with a Canon 70-200 f2.8L IS II USM telephoto lens was taken in the Fall morning in Quebec City, after a night with frost. The Russian Mountain Ash berries have not yet been eaten by all kinds of birds, so we can use them for our bird photography session before it is too late.

In anticipation of the cold winter days, I designed a retractable feeder to help the family of five blue jays which lives in the neighborhood. I thought it would take several days for them to get to grips with the new system, but in less than 24 hours, they were gleefully stuffing themselves.

Blue Jay eating peanuts
Blue Jay eating peanuts

The five blue jays each have a well-defined behavior. I have one who accepts to eat peanuts in my hands, but he mistakes my fingertips for the tip of a peanut. He pulls but nothing helps : the peanut does not follow. He probably suffers from myopia…

There is another who spends his time changing his mind; he chooses a peanut, then puts it back in the pot, then chooses another. After procrastinating and swapping the peanuts multiple times, he flies away. Another is an aerobatic ace; it arrives at high speed and catches peanuts in a fraction of a second without stopping. It rarely drops it.

Hermit Thrush in a Russian Mountain Ash.
Hermit Thrush in a Russian Mountain Ash.

During this time, the Hermit Thrush in the tree continues to taste the small red berries, indifferent to the activities of the blue jays.

Click on the link for other photos of Quebec City and île d’Orléans in Autumn on my blog.

Categories
Photos of Canada Photos of Quebec

On The Road (2)

Old American Ford pick-up on the road to Lyster in Québec in 2020
Old American Ford pick-up on the road to Lyster in Québec in 2020

This photo was taken at the end of a beautiful day in the Chaudière-Appalaches region. The sun is almost on the horizon and is hitting the sides of the trees directly, further enhancing the autumn colors .

By this time, people are home having dinner and there are hardly any vehicles on the road. Rather than photographing an empty road, which certainly would have been a logical choice, I waited for a vehicle to show up and advance into the foreground of the photo. We are in the countryside and, luckily for me, the old Ford pick-up fitted perfectly in the landscape.

In terms of the photographic composition, the ideal position to capture the scene seemed to be near the curve, so as to use the white line of the road as a guideline leading to the subject of interest. The 16×9 format also allowed for a photo large enough to include the set of transmission line poles on the left, which itself was certainly as old as the pick-up. The latter was positioned according to the rule of thirds, without any compromises being necessary.

The posts on the left allowed a better framing of the subject. In the distance, the sun shines on the road and we assume there is a field on the left that lets the sun’s rays pass through.

The picture was taken with a Canon 5DS R full frame camera.

Click on the link for other photos of the province of Québec on my blog.

Categories
Photos of Quebec

On the road (1)

Cows and autumnal landscape in Quebec 2020
Cows and autumnal landscape in Quebec 2020

The picture above was taken from my car as I was driving on the roads of Quebec in the Chaudière-Appalaches region, looking for interesting subjects that would show the first autumn colors. The sound of the engine idling attracted the curiosity of the animals. Ears are pointed and the two cows kept their eyes on me the whole time I was adjusting the camera. Coincidentally, they stood in an ideal position for a photo taken in vertical format. The photographic composition was thus simplified. A few yellow leaves in the tree show that Autumn was only starting. The picture was taken with a Canon 5DS R full frame camera.

Click on the link for other photos of Canada on my blog.

Categories
Photography

Blue Jay and Russian Mountain Ash

Blue jay and Russian Mountain Ash. Autumn 2020 in Quebec City.
Blue jay and Russian Mountain Ash. Autumn 2020 in Quebec City.

Every Autumn, a Blue Jay lands on our patio knowing he can stock up for the winter. After hearing his calls, I quickly get the peanuts and the camera.

The pictures were taken with a Canon EOS 5DS R which allows significant cropping without loss of quality. In the photo above, the branches of the Russian Mountain Ash surround the bird and provide a natural setting.

I place the peanuts in front of the tree, just to include a few small red fruits in the photographic composition.

Blue jay with a peanut in front of a Russian Mountain Ash. Quebec City 2020.
Blue jay with a peanut in front of a Russian Mountain Ash. Quebec City 2020.

Capturing the blue jay in flight is a bit more difficult, but in the digital age and with a Canon EF 70-200mm f / 2.8L IS II USM lens, photographing birds in flight is made much easier. The photo below was taken with a shutter speed of 1/8000, an aperture of 4.0, and an ISO set at 1250.

Blue Jay in flight. Quebec City 2020.
Blue Jay in flight. Quebec City 2020.

I have yet to see a Blue Jay eat the fruits of our Russian Mountain Ash. On the other hand, the ravens of the neighborhood have no problem with them.

Raven in a Russian Mountain Ash
Raven in a Russian Mountain Ash

Here is a link for more pictures of Quebec in Autumn on my website.

Categories
Graphic novels and comics

Hostage

Hostage by Guy Delisle
Hostage by Guy Delisle

Guy Delisle took fifteen years to write this graphic novel. He tells the story of the kidnapping for ransom (K&R) in 1997 of a French citizen, Christophe André, while he was working for a medical NGO in the Caucasus region.

Faithful to his habits, this author born in Quebec City offers us a fascinating and humane narrative. A work that looks at a real life story often adds tension, when properly put together. This is what happens with the work of Guy Delisle. Hostage is a 428-page graphic novel that can be read in one sitting. As it often happens in dramatic events, humans discover an unsuspected character and strengths that enable them to cope with abuse, loneliness and stress.

Hostage by Guy Delisle interior page
Hostage by Guy Delisle interior page

The pace and the quality of the drawings and the script make it easy for the reader to dive into the story and imagine themselves in the place of the captive. Would the decisions made by the hostage also have been made by the reader? Would he have used other means to deal with his captivity?

I discourage the reader from trying to discover the conclusion of this story before starting to read the book. Resist this temptation, the read is worth the effort!

Click on the link for other graphic novels and comics on my blog.

Title : Hostage.

Author : Guy Delisle

Editions : Drawn & Quarterly (25 April 2017)

©2016 et 2017

ISBN-13 : 978-1770462793

Categories
Aviation Pioneers

Books : Our Transatlantic Flight.

Our transatlantic flight, by Sir John Alcock and Sir Arthur Whitten Brown
Our transatlantic flight, by Sir John Alcock and Sir Arthur Whitten Brown

Newfoundland

Before 1949, Newfoundland was called Dominion of Newfoundland   and was part of the British Commonwealth . In 1949, it became a Canadian province.

The first non-stop flight eastward across the Atlantic.

The book « Our transatlantic flight » tells the story of the historic flight that was made in 1919, just after the First World War, from Newfoundland to Ireland. There was a 10,000 £ prize offered by Lord Northcliffe   from Great Britain for whoever would succeed on the first non-stop flight eastward across the Atlantic.

A triumph for British aviation

Sir John Alcock and Sir Arthur Whitten Brown , respectively pilot and navigator, wrote the story of their successful flight in this book which was published in 1969. The followings are pilot quotes from the book : « For the first time in the history of aviation the Atlantic had been crossed in direct, non-stop flight in the record time of 15 hours, 57 minutes. » (p.13) « The flight was a triumph for British aviation; the pilot and navigator were both British, the aircraft was a Vickers-Vimy   and the twin engines were made by Rolls-Royce. » (p.13)

Sir John Alcock and Sir Arthur Whitten Brown
Sir John Alcock and Sir Arthur Whitten Brown

As with all great human achievements, a very good flight planning and some luck was needed to make this flight a success. If there was an engine failure during the flight, even if the planning was excellent, there was only one outcome : downward.

In order to make the flight, Alcock and Brown boarded a ship from England bound to Halifax. They then headed to Port aux Basques and finally arrived in St.John’s. There, they joined a small group of British aviators who had arrived a few days before and who were also preparing for the competition. « The evenings were mostly spent in playing cards with the other competitors at the Cochrane Hotel, or in visits to the neighbouring film theatres. St.John’s itself showed us every kindness. » (p.60)

Maritime transport was used to carry the Vickers-Vimy biplane to Newfoundland on May 4th. It was assembled in Newfoundland. « The reporters representing the Daily Mail, the New York Times, and the New York World were often of assistance when extra manpower was required. » (p.61).

While the aircraft was being built, there were more and more visiters coming to the site. Brown says : « Although we remained unworried so long as the crowd contented itself with just watching, we had to guard against petty damage. The testing of the fabric’s firmness with the point of an umbrella was a favourite pastime of the spectators […]. » (p.61)

The Vickers-Vimy is being reassembled at Quidi Vidi in Newfoundland.
The Vickers-Vimy is being reassembled at Quidi Vidi in Newfoundland.

It was difficult to find a field that could be improvised into an aerodrome : « Newfoundland is a hospitable place, but its best friends cannot claim that it is ideal for aviation. The whole of the island has no ground that might be made into a first-class aerodrome. The district around St.John’s is  especially difficult. Some of the country is wooded, but for the most part it shows a rolling, switchback surface, across which aeroplanes cannot taxi with any degree of smoothness. The soil is soft and dotted with boulders, as only a light layer covers the rock stratum. Another handicap is the prevalence of thick fogs, which roll westward from the sea. » (p.59)

They flight tested the airplane on June 9th at Quidi Vidi. During the short flight, the crew could see icebergs near the coast. They did a second trial on June 12th and found that the transmitter constantly caused problems. But, at least, the engines seemed to be reliable…

The departure

The two men left Newfoundland on June 14th 1919. In order to fight the cold air in flight, they wore electrically heated clothing. A battery located between two seats provided for the necessary energy.

The Vickers-Vimy departs from Newfoundland in 1919
The Vickers-Vimy departs from Newfoundland in 1919

The short take-off was very difficult due to the wind and the rough surface of the aerodrome. Brown writes : « Several times I held my breath, from fear that our under-carriage would hit a roof or a tree-top. I am convinced that only Alcock’s clever piloting saved us from such an early disaster. » (p.73)

It took them 8 minutes to reach 1000 ft. Barely one hour after departure and once over the ocean, the generator broke and the flight crew was cut off from all means of communication.

As the airplane consumed petrol, the centre of gravity changed and since there was no trim on the machine, the pilot had to exert a permanent backward pressure on the joystick.

Flying in clouds, fog and turbulence.

During the flight with much clouds and fog, Brown, having almost no navigation aid,  had real problems to estimate the aircraft’s position and limit the flying errors. He had to wait for a higher altitude and for the night to come to improve his calculations : « I waited impatiently for the first sight of the moon, the Pole Star and other old friends of every navigator. » (p.84). The fog and clouds were so thick that at times they « cut off from view parts of the Vickers-Vimy. » (p.95)

Without proper instruments to fly in clouds, they were relying on a « revolution-counter » to establish the climbing or the falling rate. That is pretty scary. « A sudden increase in revolutions would indicate that the plane was diving; a sudden loss of revs  would show that she was climbing dangerously steeply. » (p.176)

But that was not enough. They also had to deal with turbulence that rocked the plane while they could not see anything outside. They became desoriented : « The airspeed indicator failed to register, and bad bumps prevented me from holding to our course. From side to side rocked the machine, and it was hard to know in what position we really were. A spin was the inevitable result. From an altitude of 4,000 feet we twirled rapidly downward.[…]. « Apart from the changing levels marked by aneroid, only the fact that our bodies were pressed tightly against the seats indicated that we were falling. How and at what angle we were falling, we knew not. Alcock tried to centralise the controls, but failed because we had lost all sense of what was central. I searched in every direction for an external sign, and saw nothing but opaque nebulousness. » (p.88)

« It was a tense moment for us, and when at last we emerged from the fog we were close down over the water at an extremely dangerous angle. The white-capped waves were rolling along too close to be comfortable, but a quick glimpse of the horizon enabled me to regain control of the machine. » (p.40).

De-icing a gauge installed outside of the cockpit.

Snow and sleet were falling. They didn’t realize how lucky they were to continue flying in such a weather. Nowadays, there are many ways to dislodge ice from a wing while the aircraft is in flight. Here is what Brown says about their situation : « […] The top sides of the plane were covered completely by a crusting of frozen sleet. The sleet imbedded itself in the hinges of the ailerons and jammed them, so that for about an hour the machine had scarcely any lateral control. Fortunately, the Vickers-Vimy possesses plenty of inherent lateral stability; and, as the rudder controls were never clogged by sleet, we were able to hold to the right direction. » (p.95)

After twelve hours of flying, the glass of a gauge outside the cockpit became obscured by clotted snow. Brown had to deal with it, while Alcock was flying. «  The only way to reach it was by climbing out of the cockpit and kneeling on top of the fuselage, while holding a strut for the maintenance of balance. […] The violent rush of air, which tended to push me backward, was another discomfort. […] Until the storm ended, a repetition of this performance, at fairly frequent intervals, continued to be necessary. » (p.94)

In order to save themselves, they executed a descent from 11,000 to 1000 feet and in the warmer air the ailerons started to operate again. As they continued their descent below 1000 feet over the ocean, they were still surrounded by fog. They had to do some serious low altitude flying : « Alcock was feeling his way downward gently and alertly, not knowing whether the cloud extended to the ocean, nor at what moment the machine’s undercarriage might touch the waves. He had loosened his safety belt, and was ready to abandon ship if we hit the water […]. » (p.96)

The arrival.

They saw Ireland at 8.15 am on June 15th and crossed the coast ten minutes later. They did not expect a very challenging landing as the field looked solid enough to support an aircraft. They landed at 8 :40 am at Clifden on top of what happened to be a bog; the aircraft rolled on its nose and suffered serious material damages. The first non-stop transatlantic flight ended in a crash. Both both crewmen were alive and well, although they were dealing with fatigue…

The transatlantic flight ends up in Ireland in a soft field
The transatlantic flight ends up in Ireland in a soft field

Initially, nobody in Ireland believed that the plane arrived from North America. But when they saw mail-bags from Newfoundland, there were « cheers and painful hand-shakes » (p.102).

First page of the Sunday Evening Telegraph in 1919.
First page of the Sunday Evening Telegraph in 1919.

They were cheered by the crowds in Ireland and England and received their prize from Winston Churchill.

John Alcock chaired by the crowd
John Alcock chaired by the crowd
Winston Churchill is presenting the Daily Mail Check to the two pilots.
Winston Churchill is presenting the Daily Mail Check to the two pilots.

Their record stood unchallenged for eight years until Lindbergh’s flight in 1927.

The future of transatlantic flight.

Towards the end of the book, the authors risk a prediction on the future of transatlantic flight. But aviation made such a progress in a very short time that, inevitably, their thoughts on the subject was obsolete in a matter of a few years. Here are some examples :

« Nothwithstanding that the first two flights across the Atlantic were made respectively by a flying boat and an aeroplane, it is evident that the future of transatlantic flight belongs to the airship. » (p.121)

« […] The heavy type of aeroplane necessary to carry an economical load for long distances would not be capable of much more than 85 to 90 miles an hour. The difference between this and the present airship speed of 60 miles an hour would be reduced by the fact that an aeroplane must land at intermediate stations for fuel replenishment. » (p.123)

« It is undesirable to fly at great heights owing to the low temperature; but with suitable provision for heating there is no reason why flying at 10,000 feet should not be common. » (p.136)

The Air Age.

There is a short section in the book on the « Air Age ». I chose two small excerpts on Germany and Canada :

On Germany’s excellent Zeppelins : « The new type of Zeppelin – the Bodensee –  is so efficient that no weather conditions, except a strong cross-hangar wind, prevents it from making its daily flight of 390 miles between Friedrichshafen and Staalsen, thirteen miles from Berlin. » (p.140)

On Canada’s use of aeroplanes : « Canada has found a highly successful use for aeroplanes in prospecting the Labrador timber country. A group of machines returned from an exploration with valuable photographs and maps of hundreds of thousands of pound’s worth of forest land. Aerial fire patrols, also, are sent out over forests.» (p.142) and « Already, the Canadian Northwest Mounted Police [today the RCMP] have captured criminals by means of aeroplane patrols. » (p.146)

Conclusion

The Manchester Guardian stated, on June 16th 1919 : « […] As far as can be foreseen, the future of air transport over the Atlantic is not for the aeroplane. It may be used many times for personal feats of daring. But to make the aeroplane safe enough for business use on such sea routes we should have to have all the cyclones of the Atlantic marked on the chart, and their progress marked in from hour to hour. »(p.169)

Title : Our Transatlantic Flight

Authors : Sir John Alcock and Sir Arthur Whitten Brown

Edition : William Kimber

© 1969

SBN : 7183-0221-4

For other articles on that theme on my website: Aviation pioneers.

Categories
History of cities

Black Detroit: a people’s history of self-determination.

Cover page of the book Black Detroit by Herb Boyd.
Cover page of the book Black Detroit by Herb Boyd.

As the author Herb Boyd writes, « this is the first book to consider black Detroit from a long view, in a full historical tableau. » (p.14). If you are looking for a significant black person that influenced Detroit’s history, he or she is in the book.

The author covers the arrival of Blacks in Detroit through the Underground Railroad the type of work they could find, the music they created, their need to have their own church to avoid racism, the work at Ford, the influence of trade unions,  the poor housing conditions, etc.

Of course, there are several paragraphs on racism, police repression and useless violence, the problems caused by the KKK and how a few individuals dealt with it, the Smith Act, the American Civil War and the desire the end slavery, the presence of Rosa Parks in the city and  Nelson Mandela’s visit in Detroit in 1990.

There is not only something on the past history and development of Detroit but also thoughts on the future of the city and how it will have to deal with the fact that there are so many people choosing to live in the suburbs instead of in Detroit itself.

Since the fight for equal rights, racism, police repression and the useless deaths of so many black individuals have continued to be an important problem in United States, I have chosen a few quotes from the book on those subjects.

I also chose a paragraph on Nelson Mandela’s visit in Detroit. When Nelson Mandela left United States to fly back to South Africa, his plane had to do a stopover in Iqaluit, in Canada’s Arctic. I was working as a flight service specialist (FSS) at Iqaluit in 1990, so I could see him and Winnie attending an official ceremony in the middle of the night at the airport’s terminal. You can read the real life stories in Iqaluit on my website.

Detroit and Canada.

« In 1795, Detroit was still under British jurisdiction, and the city was a de facto part of Upper Canada. » (p.22)

« Judge Woodward stipulated in a later ruling that if black Americans were to acquire freedom in Canada, they could not be returned to slavery in the United States. “Two of Denison’s children […] took advantage of this ruling by escaping to Canada for a few years and then returning to Detroit as free citizens”. Theirs was a landmark case and would be cited as a precedent in a number of appeals for emancipation by enslaved African Americans. (p.25)

The Smith Act

The Smith Act, was written so that labor organization and agitation for equal rights could be construed as sedition and treason, the same as actually fighting to overthrow the government by force” (p.162)

Police repression and brutality

“[…] Twenty-five blacks had been killed in Detroit while in police custody in 1925, eight times the number killed under police supervision that year in New York City, whose black population was at least twice as large” (p.112)

“During STRESS’s (Stop the Robberies and Enjoy Safe Streets) first year as a death squad – cum – SWAT team [near 1970], the city’s police force had the highest number of civilian killings per capita of any American police department. During its three and a half years of existence, STRESS officers shot and killed 24 men, 22 of them African American.[…] Among the STRESS officers, none was as seemingly problematic as crew chief Raymond Peterson. Before he was assigned to STRESS, he had amassed a record number of complaints. During his first two years on the squad, he took part in nine killings and three nonfatal shootings. Bullets from Peterson’s gun killed five of the victims. No charges were brought in any of these cases.” (p.226-227)

The policeman Raymond Peterson and a murder charge in Detroit in the seventies.
The policeman Raymond Peterson and a murder charge in Detroit in the seventies.

© Detroit Free Press March 23rd 1973

“[Around 1999] gentrification was one thing to worry about, but police brutality was a far more menacing immediacy for young black Detroiters. They were keenly aware there was little mercy awaiting them from the police, nor from school conselors or employment agencies, and certainly not from the drug dealers” (p.292)

“[Around 2001] Detroit, according to reports from several local papers, had the highest number of fatal shootings among the nation’s largest cities” (p.300)

“Throughout the nation over the previous decade, from 1999 to 2009, gun violence had taken the lives of thousands of young black men and women, and hundreds of them were unarmed victims of unwarranted police violence. Few of these terrible tragedies were as heart-wrenching as the killing of seven-year-old Aiyana Jones by a police officer in May 2010. It was around midnight and Aiyana was asleep on the couch with her grandmother nearby watching television. Neither of them had time to react to the thud at the door nor the flash-bang grenade tossed into the living room by the police at the start of the raid.

                Officer Joseph Weekley immediately began firing his MP5 submachine gun blindly through the window into the smoke and chaos. One of the bullets entered Aiyana’s head and exited through her neck. She was killed instantly. The SWAT team had come looking for a murder suspect who lived upstairs but left with only a dead child. […]. » (p.327-328).

Education

Ethelene Crockett, having raised three children, earned a medical degree from Howard University in 1942. She completed her internship at Detroit Receiving Hospital, and because no Detroit hospital would accept an African American woman physician, she did her residency in New York City. Finally in 1952, she was accepted at a hospital in Detroit, becoming the first black woman in her field of obstetrics and gynecology to practice in the state.” (p.163)

No middle-class for young blacks.

“With the traditional routes to middle-class success closed, young black Detroiters sought other means of survival, mainly via the underground economy.” (p.254)

Nelson Mandela in Detroit

“In the summer of 1990, Nelson Mandela toured the United States after spending twenty-seven years in prison. […] When Mandela and his wife, Winnie, emerged from the plane [in Detroit], one of the first people they recognized was Rosa Parks. Nelson Mandela stated that Parks had been his inspiration during the long years he was jailed on Robben Island and that her story had inspired South African freedom fighters’” (p.268).

Detroit’s future

“Most Detroiters live in neighborhoods, and in these areas, development is uneven. There are some flashes of improvement, but by and large, communities are still struggling with unemployment, crime, and low-achieving schools. Detroit is a city with large expanses of uninhabited land and is sprinkled with thirty-one thousand vacant and dilapidated houses. In various pockets throughout town, community-based organizations have worked tirelessly to maintain their respective areas against a tide of neglect and disinvestment. The current mayoral administration has tried to use an assortment of methods to arrest the decline of the neighborhoods, with moderate success. This gargantuan task has been assisted with massive aid from the Obama administration, but the city still has major hurdles ahead with a large poor, unskilled, and semiliterate population.” (p.342).

Click on the link for other books on the history of cities on my blog.

Title : Black Detroit

Author : Herb Boyd

Edition : Amistad

© 2017

ISBN : 978-0-06-234662-9

Categories
Environment

Bird photography : the Pileated Woodpecker in Quebec.

Pileated Woodpecker (female) at work on a silver maple in 2020.
Pileated Woodpecker (female) at work on a silver maple in 2020.




Last week, a Pileated Woodpecker female landed on our silver maple. When it digs a hole in a tree to find food, the bird hits the trunk harder and at a much slower rate than the Hairy Woodpecker. This is what caught our attention.

This Woodpecker is impressive, especially when it is the first time that we have the chance to observe it at work. The Pileated Woodpecker measures between 40 and 49 cm and is found in Canada and the United States. When its work is completed, it leaves a hole of about 10 x 7 cm in the tree.

Click on the link for other articles on the environment on my blog.