The Pinyon Jay
Title | The Pinyon Jay PDF eBook |
Author | John M. Marzluff |
Publisher | A&C Black |
Total Pages | 264 |
Release | 2010-10-30 |
Genre | Nature |
ISBN | 1408136929 |
A flock of Pinyon Jays arrive in a flash of blue, and leave again just as suddenly. This once mysterious bird is now the subject of over 20 years of intensive research involving over one thousand colour-marked jays by Russell Balda, John Marzluff and their colleagues and helpers. This plain blue bird has turned out to be anything but plain in its biology and behaviour. Uniquely dependent on the seeds of the Pinyon Pine for food, they have developed a number of behavioural and morphological adaptations to best utilise this resource, above all caching enough seeds each autumn to supply their needs throughout the winter and fuel their unusual habit of nesting in late winter. Fluctuations in pine-seed supply, both by season and between years, poses special problems for these birds and has led to their extremely flexible and complex social system in which learning and memory play an unusually large part. They store pine seeds and retrieve them with uncanny accuracy; they form lifelong pair bonds and nest colonially, occasionally involving younger birds to help established pairs rear the young; and they use their large vocabulary to coordinate activities within one of the largest known avian societies. This intriguing story will fascinate both the enthusiastic amateur birder and the professional alike. Packed with information, it presents Pinyon Jay biology in a readable form and places them into the wider context of studies on bird ecology and evolution. Fine illustrations by Tony Angell, with additional pictures by Caroline Bauder, complete this attractive addition to any birder's bookshelf.
How to Know the Birds
Title | How to Know the Birds PDF eBook |
Author | Ted Floyd |
Publisher | |
Total Pages | 308 |
Release | 2019 |
Genre | House & Home |
ISBN | 1426220030 |
"In this elegant narrative, celebrated naturalist Ted Floyd guides you through a year of becoming a better birder. Choosing 200 top avian species to teach key lessons, Floyd introduces a new, holistic approach to bird watching and shows how to use the tools of the 21st century to appreciate the natural world we inhabit together whether city, country or suburbs." -- From book jacket.
Pinyon Jay
Title | Pinyon Jay PDF eBook |
Author | Russell P. Balda |
Publisher | |
Total Pages | 32 |
Release | 2002 |
Genre | |
ISBN |
Lives of North American Birds
Title | Lives of North American Birds PDF eBook |
Author | Kenn Kaufman |
Publisher | Houghton Mifflin Harcourt |
Total Pages | 708 |
Release | 1996 |
Genre | Nature |
ISBN | 9780618159888 |
The bestselling natural history of birds, lavishly illustrated with 600 colorphotos, is now available for the first time in flexi binding.
The Florida Scrub Jay
Title | The Florida Scrub Jay PDF eBook |
Author | Glen Everett Woolfenden |
Publisher | Princeton University Press |
Total Pages | 428 |
Release | 1984 |
Genre | Nature |
ISBN | 9780691083674 |
Florida Scrub Jays are an excellent example of a cooperative-breeding species, in which adult birds often help raise offspring not their own. For more than a decade Glen E. Woolfenden and John W. Fitzpatrick studied a marked population of these birds in an attempt to establish a demographic base for understanding the phenomenon of "helping at the nest." By studying both population biology and behavior, the authors found that habitat restraints, rather than kin selection, are the main source of the behavior of Florida Scrub Jays: the goal of increasing the number of close relatives other than descendants in future generations is of relatively minor importance in their cooperative-breeding behavior. The Florida Scrub Jay lives only in the Florida oak scrub. All acceptable habitat is constantly filled with breeders. Each year about half of the pairs are assisted by one to several nonbreeding helpers. This book provides extensive data on fecundity, survivorship, relatedness, and dispersal to establish the demographic milieu and to address questions arising out of observed helping behavior--whom, how, when, and why the helpers help.
Bird Tracks & Sign
Title | Bird Tracks & Sign PDF eBook |
Author | Mark Elbroch |
Publisher | Stackpole Books |
Total Pages | 480 |
Release | 2001-11-01 |
Genre | Nature |
ISBN | 0811742539 |
Songbirds, waterfowl, owls, shorebirds, warblers, woodpeckers, nightjars, birds of prey. Dozens of feather groups photographed in color.
Gifts of the Crow
Title | Gifts of the Crow PDF eBook |
Author | John Marzluff |
Publisher | Simon and Schuster |
Total Pages | 320 |
Release | 2013-02-05 |
Genre | Nature |
ISBN | 1439198748 |
Offers insight into crows' ability to make tools and respond to environmental challenges, explaining how they engage in human-like behaviors, from giving gifts and seeking revenge to playing and experiencing dreams.