Field Guide to Mammal Tracking in North America by James C. Halfpenny

By James C. Halfpenny

Animal tracks within the snow of the mountain wooded area, within the dust alongside a streambank, or within the sand of the wilderness are even more than footprints. James Halfpenny’s box consultant will enable the character lover to fulfill his or her interest through choosing the animal that left the prints. yet identity is simply the start of a attention-grabbing task: interpretation is the worthwhile aim of this ebook. With it someone could be a nature detective, in a position to reconstruct the habit of mammals from mice to moose. Tracks inform tales and the person of this ebook can learn them. according to box learn, a lot of it the author’s personal, the publication brings the novice naturalist the most recent info on animal gaits and the translation of scat.

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If you can take the flash off the camera, hold it so the track is crosslighted to provide better contrast. Whenever you take pictures be sure to include a scale. A six-inch ruler is easy to carry, but anything of known size can be used. Place it as close to the track as possible to limit distortion from parallax. When possible shoot straight down on the print. A tripod will help you get good depth of field under limited light conditions as well as avoid the single greatest cause of poor picturescamera movement.

Weasel Family 81 11. Raccoon Family 91 12. Opossum Family 95 13. Shrew Family 96 14. Even-Toed Ungulates 97 15. Reading Trails 106 16. Scatology 135 Bibliography 149 Index 153 Page xi Acknowledgements Since 1967 when I took my first photographs of tracks, many individuals have shared in field experiences and helped gather the knowledge contained in this book. Others have loaned me their photographs, collections, or notes or in some other way contributed to my knowledge of tracking. I wish to express my thanks to my colleagues and companions: Dave Armstrong, Nancy Auerbach, Steve Bissell, Norm Bishop, Scot Burns, Denise Casey, Tim Clark, Willie Cunningham, Scot Elias, Bill Ervin, Louise (Richardson) Forest, Rusty Fuller, Howard Hash, Bob Hasenyager, Larry Higby, Tass Kelso, Kathy Ingraham, Nan Lederer, Chris Linville, Larry Marlow, Carron Meaney, Anna Moscichi, Dave Nead, Rick Richards, Bob Rozinski, Dave Slovisky, Roger Smith, Jay Stravers, Bruce Thompson, Betsy Webb, Olwen Williams, and Kathleen Zinnel.

In the transverse lope the right, or diagonal, fore foot strikes the ground after the left hind foot. An observer has the impression of all four feet coming together and then the front feet being separated from the hind feet. F is the position of the front track and H is the position of the hind track. Page 21 Pronghorn antelope utilizing an asymmetrical rotatory gallop. In the full gallop there are two periods of suspension: a gathered suspension where the animal takes off from the front feet (GS above) and an extended suspension where it takes off from the hind feet (ES above).

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