Bird Tracks

Author : Mark Elbroch,Eleanor Marie Marks
Publisher : Stackpole Books
Page : 468 pages
File Size : 51,6 Mb
Release : 2001
Category : Nature
ISBN : 0811726967

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Bird Tracks & Sign by Mark Elbroch,Eleanor Marie Marks Pdf

A sighting in the field is just one way birders can identify bird species. Observant nature-lovers can discover what birds are where by examining tracks, trails, and a variety of bird sign: discarded feathers, feeding leftovers and caches, pellets, nests, droppings, and skulls and bones. This fully illustrated guide-the first of its kind for North American birds-presents thorough and straightforward instruction for identifying bird families or individual species by careful examination of the unique sign they leave behind. It also offers keys to the birds' behavior in the wild. Includes songbirds, waterfowl, owls, shorebirds, warblers, woodpeckers, nightjars, and birds of prey. For trackers, birders, and nature-lovers.

Author : Mark Elbroch,Eleanor Marks
Publisher : Stackpole Books
Page : 480 pages
File Size : 51,8 Mb
Release : 2001-11-01
Category : Nature
ISBN : 9780811742535

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Bird Tracks & Sign by Mark Elbroch,Eleanor Marks Pdf

Songbirds, waterfowl, owls, shorebirds, warblers, woodpeckers, nightjars, birds of prey. Dozens of feather groups photographed in color.

Author : Predrag Cvitanović
Publisher : Princeton University Press
Page : 278 pages
File Size : 49,7 Mb
Release : 2020-05-26
Category : Mathematics
ISBN : 9780691202983

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Group Theory by Predrag Cvitanović Pdf

If classical Lie groups preserve bilinear vector norms, what Lie groups preserve trilinear, quadrilinear, and higher order invariants? Answering this question from a fresh and original perspective, Predrag Cvitanovic takes the reader on the amazing, four-thousand-diagram journey through the theory of Lie groups. This book is the first to systematically develop, explain, and apply diagrammatic projection operators to construct all semi-simple Lie algebras, both classical and exceptional. The invariant tensors are presented in a somewhat unconventional, but in recent years widely used, "birdtracks" notation inspired by the Feynman diagrams of quantum field theory. Notably, invariant tensor diagrams replace algebraic reasoning in carrying out all group-theoretic computations. The diagrammatic approach is particularly effective in evaluating complicated coefficients and group weights, and revealing symmetries hidden by conventional algebraic or index notations. The book covers most topics needed in applications from this new perspective: permutations, Young projection operators, spinorial representations, Casimir operators, and Dynkin indices. Beyond this well-traveled territory, more exotic vistas open up, such as "negative dimensional" relations between various groups and their representations. The most intriguing result of classifying primitive invariants is the emergence of all exceptional Lie groups in a single family, and the attendant pattern of exceptional and classical Lie groups, the so-called Magic Triangle. Written in a lively and personable style, the book is aimed at researchers and graduate students in theoretical physics and mathematics.

Author : Roy Brown,David Lees,John Ferguson,Michael Lawrence
Publisher : Bloomsbury Publishing
Page : 845 pages
File Size : 53,8 Mb
Release : 2021-12-09
Category : Nature
ISBN : 9781472973214

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Tracks and Signs of the Birds of Britain and Europe by Roy Brown,David Lees,John Ferguson,Michael Lawrence Pdf

Tracks & Signs of the Birds of Britain and Europe contains a wealth of fascinating material for any field naturalist. This unique guide enables the reader to find, interpret and understand field marks left by a variety of birds throughout Britain and Europe, and to use these to identify the species in question. It covers subjects including tracks and trails, feeding and other behavioural signs, nests, pellets, droppings, feathers and skulls, habitat types and field analysis methods. All European bird families are featured, with numerous individual species being described in detail. Fully revised and updated, this third edition contains a great deal of new material, including 19 new colour plates and hundreds of new photographs, line drawings and diagrams. Tracks & Signs of the Birds of Britain and Europe is an indispensable addition to any feather-finder or track-watcher's backpack – the ultimate resource for anyone wanting to identify a bird species from the sometimes subtle clues they leave behind.

Author : Anthony J. Martin
Publisher : Indiana University Press
Page : 714 pages
File Size : 51,6 Mb
Release : 2013-01-14
Category : Science
ISBN : 9780253006097

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Life Traces of the Georgia Coast by Anthony J. Martin Pdf

Have you ever wondered what left behind those prints and tracks on the seashore, or what made those marks or dug those holes in the dunes? Life Traces of the Georgia Coast is an up-close look at these traces of life and the animals and plants that made them. It tells about how the tracemakers lived and how they interacted with their environments. This is a book about ichnology (the study of such traces) and a wonderful way to learn about the behavior of organisms, living and long extinct. Life Traces presents an overview of the traces left by modern animals and plants in this biologically rich region; shows how life traces relate to the environments, natural history, and behaviors of their tracemakers; and applies that knowledge toward a better understanding of the fossilized traces that ancient life left in the geologic record. Augmented by illustrations of traces made by both ancient and modern organisms, the book shows how ancient trace fossils directly relate to modern traces and tracemakers, among them, insects, grasses, crabs, shorebirds, alligators, and sea turtles. The result is an aesthetically appealing and scientifically grounded book that will serve as source both for scientists and for anyone interested in the natural history of the Georgia coast.

Author : Richard P. Smith
Publisher : Stackpole Books
Page : 276 pages
File Size : 50,9 Mb
Release : 1982
Category : Nature
ISBN : 0811721248

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Animal Tracks and Signs of North America by Richard P. Smith Pdf

Contains photographs and descriptions of animal and bird tracks as they appear in the wild, covering squirrels, rabbits, cats, bears, deer, and other creatures; and includes basic instructions on tracking skills and techniques.

Author : Lars-Henrik Olsen
Publisher : Princeton University Press
Page : 275 pages
File Size : 51,7 Mb
Release : 2013-08-25
Category : Nature
ISBN : 9780691157535

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Tracks and Signs of the Animals and Birds of Britain and Europe by Lars-Henrik Olsen Pdf

An indispensable color-illustrated field guide to the tracks and signs of Europe's animals and birds This beautifully illustrated field guide enables you to easily identify the tracks and signs left by a wide variety of mammal and bird species found in Britain and Europe, covering behaviors ranging from hunting, foraging, and feeding to courtship, breeding, and nesting. Introductory chapters offer detailed drawings of footprints and tracks of large and small mammals, which are followed by sections on mammal scat, bird droppings, and the feeding signs of animals on food sources such as nuts, cones, and rose hips. The book then describes specific mammal species, providing information on size, distribution, behavior, habitat, and similar species, as well as more specific detail on tracks and scat. Distribution maps are also included. This indispensable field guide covers 175 species of mammals and birds, and features a wealth of stunning color photos and artwork throughout. Helps you easily identify the tracks and signs of a variety of mammals and birds Covers 175 species Illustrated throughout with photos, drawings, and artwork Includes informative descriptions of mammal species along with distribution maps

Author : Luis M. Chiappe,Lawrence M. Witmer
Publisher : Univ of California Press
Page : 534 pages
File Size : 50,7 Mb
Release : 2002-12-05
Category : Science
ISBN : 9780520200944

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Mesozoic Birds by Luis M. Chiappe,Lawrence M. Witmer Pdf

"Mesozoic Birds is the first book to bring together world-renowned specialists on fossil birds and their importance to avian origins and, more importantly, it stresses a unified approach (cladistics) and presents the most anatomically detailed analyses available to date. No other study or collection of studies has ever done so much. How could the project not be welcomed by its audience of paleontologists, ornithologists, and evolutionary biologists!"—David Weishampel, editor of The Dinosauria "This is the first comprehensive volume dedicated to the relationships and evolution of the birds that lived during the Age of Dinosaurs. Its wealth of information and its diversity of viewpoints will ensure that this indispensable volume is used and discussed for many years to come."—Kevin Padian, University of California, Berkeley

Author : Sankar Chatterjee
Publisher : JHU Press
Page : 387 pages
File Size : 55,8 Mb
Release : 2015-04-01
Category : Science
ISBN : 9781421416144

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The Rise of Birds by Sankar Chatterjee Pdf

The most comprehensive account of the origin of ancient and modern birds—the "living dinosaurs." A small set of fossilized bones discovered almost thirty years ago led paleontologist Sankar Chatterjee on a lifelong quest to understand their place in our understanding of the history of life. They were clearly the bones of something unusual, a bird-like creature that lived long, long ago in the age of dinosaurs. He called it Protoavis, and the animal that owned these bones quickly became a contender for the title of "oldest known bird." In 1997, Chatterjee published his findings in the first edition of The Rise of Birds. Since then Chatterjee and his colleagues have searched the world for more transitional bird fossils. And they have found them. This second edition of The Rise of Birds brings together a treasure trove of fossils that tell us far more about the evolution of birds than we once dreamed possible. With no blind allegiance to what he once thought he knew, Chatterjee devours the new evidence and lays out the most compelling version of the birth and evolution of the avian form ever attempted. He takes us from Texas to Spain, China, Mongolia, Madagascar, Australia, Antarctica, and Argentina. He shows how, in the "Cretaceous Pompeii" of China, he was able to reconstruct the origin and evolution of flight of early birds from the feathered dinosaurs that lay among thousands of other amazing fossils. Chatterjee takes us to where long-hidden bird fossils dwell. His compelling, occasionally controversial, revelations—accompanied by spectacular illustrations—are a must-read for anyone with a serious interest in the evolution of "the feathered dinosaurs," from vertebrate paleontologists and ornithologists to naturalists and birders.

Author : Jeong Yul Kim,Min Huh
Publisher : Springer
Page : 320 pages
File Size : 42,8 Mb
Release : 2018-01-03
Category : Science
ISBN : 9789811069987

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Dinosaurs, Birds, and Pterosaurs of Korea by Jeong Yul Kim,Min Huh Pdf

This is the first academic book about the dinosaurs, birds and pterosaurs of Korea, one of the richest and most exciting regions on earth for the study of vertebrate ichnology. Many ichnogenera appear indigenous to Korea, and based on present evidence there is nowhere else in the world where such densities and diversity of vertebrate tracks have been reported. Many sites also reveal the highest density of bird and dinosaur track levels in the world. The book describes the significant advances in Cretaceous vertebrate ichnology and dinosaur research made in Korea over the past twenty years. Several dinosaur fossil sites have been excavated, and unique vertebrate fossils including dinosaurs and pterosaurs have been discovered. This landslide of discovery has resulted in a proliferation of papers on vertebrate tracks and remains from the Cretaceous of South Korea and the growing recognition that as a region it reveals multiple track-rich sequences of unique quality and scientific utility. Because of the outstanding ichnological resources in this region it has been dubbed the Korean Cretaceous Dinosaur Coast (KCDC), and many sites of national and international significance have been designated as national natural monuments of Korea. This book is written for geologists, paleontologists, ichnologists, geology and earth science students, and earth science teachers at high school, as well as the general reader interested in ancient life including the dinosaurs, birds, and pterosaurs of Korea. The goal of this book is to provide readers with a scientific understanding of Mesozoic life flourishing in the Korean Peninsula. To facilitate easy comprehension, the book contains many sketches, graphs, diagrams, photographs and tables and is supported by a comprehensive glossary.

Author : David Lees,John Ferguson,Michael Lawrence,Roy Brown
Publisher : Bloomsbury Publishing
Page : 400 pages
File Size : 47,9 Mb
Release : 2021-12-09
Category : Nature
ISBN : 9781472973191

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Tracks and Signs of the Birds of Britain and Europe by David Lees,John Ferguson,Michael Lawrence,Roy Brown Pdf

Tracks & Signs of the Birds of Britain and Europe contains a wealth of fascinating material for any field naturalist. This unique guide enables the reader to find, interpret and understand field marks left by a variety of birds throughout Britain and Europe, and to use these to identify the species in question. It covers subjects including tracks and trails, feeding and other behavioural signs, nests, pellets, droppings, feathers and skulls, habitat types and field analysis methods. All European bird families are featured, with numerous individual species being described in detail. Fully revised and updated, this third edition contains a great deal of new material, including 19 new colour plates and hundreds of new photographs, line drawings and diagrams. Tracks & Signs of the Birds of Britain and Europe is an indispensable addition to any feather-finder or track-watcher's backpack – the ultimate resource for anyone wanting to identify a bird species from the sometimes subtle clues they leave behind.

Author : John Rhyder
Publisher : The History Press
Page : 433 pages
File Size : 49,9 Mb
Release : 2021-01-29
Category : Nature
ISBN : 9780750996525

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Track and Sign by John Rhyder Pdf

'Never have I felt so connected to the natural world than when trailing . . . The direction of the wind is noted almost subconsciously, the alarm calls of birds are obvious and the track and sign of all the other animals, even insects, crossing your trail reveal themselves. It's a strangely peaceful state where every sense seems to be stretched to the limit in a state of extreme concentration, and yet one feels completely relaxed and at peace. The whole of nature is revealed within an animal trail.' John Rhyder explores the world of British mammals, birds, reptiles and amphibians through their tracks and other signs, including scat, feeding, damage to trees, dens, beds and nests, providing a fully explained and illustrated guide to the natural world around us. Following years of extensive research from one of the UK's leading wildlife trackers, Track and Sign is illustrated with line drawings and photographs, making identification in the field effective and accurate for both the complete beginner and the expert naturalist.

Author : Spencer G. Lucas,Justin A. Spielmann,Martin G. Lockley
Publisher : New Mexico Museum of Natural History and Science
Page : 330 pages
File Size : 43,6 Mb
Release : 2007
Category : Footprints, Fossil
ISBN : 8210379456XXX

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Cenozoic Vertebrate Tracks and Traces by Spencer G. Lucas,Justin A. Spielmann,Martin G. Lockley Pdf

Author : David D. Gillette
Publisher : Utah Geological Survey
Page : 568 pages
File Size : 41,5 Mb
Release : 1999
Category : Fossils
ISBN : 9781557916341

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Vertebrate Paleontology in Utah by David D. Gillette Pdf

The 52 papers in this vary in content from summaries or state-of-knowledge treatments, to detailed contributions that describe new species. Although the distinction is subtle, the title (Vertebrate Paleontology in Utah) indicates the science of paleontology in the state of Utah, rather than the even more ambitious intent if it were given the title “Vertebrate Paleontology of Utah” which would promise an encyclopedic treatment of the subject. The science of vertebrate paleontology in Utah is robust and intense. It has grown prodigiously in the past decade, and promises to continue to grow indefinitely. This research benefits everyone in the state, through Utah’s muse ums and educational institutions, which are the direct beneficiaries.

Author : Martin G. Lockley,Spencer G. Lucas
Publisher : New Mexico Museum of Natural History and Science
Page : 508 pages
File Size : 54,7 Mb
Release : 2014-11-01
Category : Dinosaur tracks
ISBN : 8210379456XXX

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Fossil Footprints of Western North America by Martin G. Lockley,Spencer G. Lucas Pdf