Four excellent and easy to use sound analysis books have been published by Pelagic Publishing. A Guide to British Bats and Bat Calls of Britain and Europe have been written by Jon Russ and give a clear explanation on how echolocation and bat detectors works. There are colour illustrations of sonograms for each species of British Bat and there is a useful selection on bat social calls.It covers heterodyne, time expansion and. frequency division. British Bat Calls covers topics such as the properties of sound; how bats use sound; bat detection methods; recording devices; analysis software; recording techniques and call analysis. For each species found in the British Isles, information is given on distribution; emergence times; flight and foraging behaviour; habitat; and echolocation including parameters for common measurements. Calls are described in the context of the different technologies used (heterodyne, frequency division and time expansion). Various spectrograms are displayed for each species using examples from both BatSound and AnaLook. An echolocation key is included with British Bat Calls. Anyway. It's just odd, though, because while Harry is going through all this traumatic shit for the first time, for me it's the 6th or 7th. I think. And it's the same shit over and over: there's a crime, Harry wanders around talking to people and philosophizing, there's another crime, something traumatic happens to Harry, Harry goes binge drinking, Harry figures out who done it in the midst of a drunken haze, Harry sobers up, solves the crime and attempts to move on with his life.

The opening chapter explains the physics of sound, how bats generate ultrasound and use it to interpret the world around them, to locate and catch insects, and to communicate with each other, whether it be "advertisement calls" (looking for a mate), defending a feeding area or distress calls. Next comes a look at the equipment needed. Here, the technically challenged among us might hesitate a little, but the three main types of bat detector – heterodyne, frequency division, and time expansion – are clearly described, including the advantages and disadvantages of each, and which is most appropriate for different situations. Recording bat calls is an essential element of bat surveys and research projects, and the next chapter explains how to record sound, different recording formats, sound recording devices and recording levels. Armed with the correct equipment, the next stage is to analyse the calls recorded, and this is where sonograms, oscillograms and power spectra come in. There is a growing range of sound analysis software now available to process the calls recorded so that they can be measured, compared and identified. This chapter guides us through the process of selecting calls for analysis, determine the call shape and call parameter and from this, how to identify the species. Finally, there is a useful species echolocation guide designed to indicate a possible species, based on echolocation call shape and the frequency. Bats are important in so many ways: they pollinate more than 500 types of plants, disperse seeds (which also helps with reforestation), eat insects that could damage our crops, and in doing these things help to balance out ecosystems and provide important food and shelter sources for other animals, including us! Jon is the Director of Ridgeway Ecology, a specialist bat consultancy, and has worked for a number of years for the Bat Conservation Trust coordinating the iBats project in the UK and Eastern Europe. After nearly twenty years involvement in bat research and conservation he continues to be fascinated by these remarkable mammals. Really cute bats decorate easy to digest bat facts in the style I expect from DK books. At 34, I still get a warm feeling from DK books, knowing there will be cool pictures and I would have to hunt around to make sure I read every single fact and not miss some little detail (and inevitably you would miss something, making rereading a lot of fun). It's nice to see that you can still get what you expect with kid's nonfiction and DK.The first in the Harry Hole series which sees the detective sent to Australia to help assist in a murder inquiry of a young Norwegian student whilst on a gap year in Sydney. A sudden, uncontrollable fury rose in him, and he cast around for something to smash. He snatched the whiskey bottle from the table and was about to launch it at the wall, but changed his mind at the last moment. It's safe to say, that I own many books on the subject of Bats. And, I'm also planning to review a few of them here soon. I can state here and now, (with certainty) that this book surpasses the others on it's overall (up-to-date) content, and execution. Bats make the world a better place, making this nature book for kids an essential tool in encouraging the protection of bats for generations to come. Following on from The Bee Book and The Sea Book , Charlotte Milner continues to highlight critical environmental issues faced by our planet. The Bat Book is perfect for teaching little animal-lovers all about these clever creatures who do so much for our world.

Respecto de la historia, hasta la mitad del libro se siente bastante simple; una investigación que avanza sin muchos sobresaltos por diferentes localidades de Australia, hasta donde llega Harry para colaborar con la policía australiana en la resolución de un caso de violación y asesinato de una ciudadana noruega residente en Sidney, que en el pasado había logrado cierta fama animando programas infantiles. En esta primera parte se disfruta mucho el relato de varias leyendas del pueblo aborigen australiano, principalmente narradas por Andrew, el compañero asignado a Harry por la policía local y que, al menos para mí, se roba el protagonismo de la novela. The author reminds us that cats should remain indoors, as they kill and .scare other animals, such as bats and birds.

Tool of the trade

The book is also illustrated with quite beautiful detailed illustrations that children will love, especially with again those various bat species displayed.

During the times that he is halfway sober he continues to investigate the serial killings and the death of Andrew Kensington. The more he finds out about Kensington the more secrets that are revealed. These shrouded bits of information lead to more secrets and many of them seem to involve a friend of Andrews, a German gay man named Otto. He is a friendly chap and Harry soon learns just how friendly. Bat Book? Yes, please, thankyouverymuch. I wanted to boop all the snoots in this edifying, vital book of batty bat friends. Milner is abundantly clear about the fact that Earth and all things living on it depend upon pollinators. As in, they are essential to life continuing, and she generously drives this home. It's a very approachable book that can be easily read in a classroom or as a bedtime story or anytime ever, because ohmygoodness, I am in utter love with bats and biased. But for those who are frightened by photos of said mammals, Milner goes with the route of pretty illustrations, as well as debunking myths in the hopes to alleviate said irrational fear. She states that bats don't get the credit they deserve and then goes above and beyond to properly give said well deserved credit, from reforestation, pollination, and protection of crops (and thus, less nasty pesticides).

Portable knowledge

Provided very useful, and easy to understand descriptions of the properties of sound. The Author did a wonderful job of clearly explaining the various facets of sound, along with the "how's and why's"of bat calls. No, Harry thought. It’s the other way round. Work long enough and you see the tiny nuances each murder has, the details that distinguish one from another and make each one unique. The book includes important information about the threats to bat habitats and why some species are in decline (and what we can do to make a difference). The art is beautifully simple and appealing. This would make a great read-along or library/classroom group activity, helping make seed balls or pollinator friendly green spaces to help the bats. In this book, Harry Hole has just arrived in Sydney, Australia, after being assigned by the Oslo Crime Department to liaise with the local police department in investigating the recent death of a beautiful Norwegian citizen. Inger Holter was young, beautiful, somewhat famous, and leading a fairly complicated personal life. As Hole, along with his assigned Australian partner Andrew Kensington, begins to explore Holter's professional and personal life, he is confronted with the possibility that Holter is a victim of a serial killer. Let’s make a tasteless and wonderfully vulgar wager, “ Otto said, his eyes glinting with amusement. “I bet one hundred dollars that this soft, slim hand of yours will have felt my vitals before you leave for Norway. Do you dare to accept the bet?”

In conclusion, the book is very well laid-out. It's very informative, and a fantastic reference, to re-visit again and again! ...Now if only a bat expert from the US (of Jon Russ' caliber) would publish a book similar to it (for North American species)...And soon! I'd be very happy! In the middle ages, stars were laden with meaning and, with no light pollution in the sky, often easier to see with the naked eye than they are now. Belief in astrology was almost universal. It was generally understood that the planets and stars under which a person is born would exert influence over a person’s health and personality. Discover how much they matter, why they are declining, and what we can do to help. This charming celebration of bats shows children just how extraordinary these animals are and is a reminder that it is up to us to care for our planet and its creatures.

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Discover why these mammals are essential to the world we live in, learn just how much they matter, why they are under threat, and what we can do to help. Bright, bold, and beautiful illustrations accompany fascinating fun facts about these furry flying mammals in this adorable kids' book. This group of manuscripts contains calendars plus the charts necessary for calculating eclipses and performing phlebotomy. Two men originally computed the charts in the 1380s – Nicholas Lynn, who worked for John of Gaunt, and John Somer, a Franciscan friar who worked for Joan of Kent. Their respective patrons charged them with the same task: to calculate the future movements of celestial bodies for four Metonic cycles, those beginning in 1387, 1406, 1425 and 1444. This was kind of an odd experience because although The Bat is the first book in the series, it's the 9th or 10th book published in English. When I first started the series I was most seriously disturbed that they chose to start with The Redbreast, the third book (IT'S JUST NOT RIGHT), but I read an article about the author where he said he thought the first 2 books were not well-done and he was happy the English-language pubs were starting where they did. Okay, fine, I suppose the man knows his own series. (IT'S JUST NOT RIGHT.) However, no one predicted the popularity of the series and, as you can see, they eventually published the first 2 books. I really wanted to like this first Harry Hole novel, but I'm afraid I found it rather far fetched and dull. The last part of the book explains some of the challenges bats are facing and how we can help protect them, such as by making seed balls (instructions included!), planting bat-friendly gardens, or hanging bat houses.