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The Most Perfect Thing

Author: Tim Birkhead
Publisher: Bloomsbury Publishing
ISBN: 1408851261
Size: 51.99 MB
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'I think that, if required on pain of death to name instantly the most perfect thing in the universe, I should risk my fate on a bird's egg' Thomas Wentworth Higginson, 1862 How are eggs of different shapes made, and why are they the shape they are? When does the shell of an egg harden? Why do some eggs contain two yolks? How are the colours and patterns of an eggshell created, and why do they vary? And which end of an egg is laid first – the blunt end or the pointy end? These are just some of the questions A Bird's Egg answers, as the journey of a bird's egg from creation and fertilisation to its eventual hatching is examined, with current scientific knowledge placed within an historical context. Beginning with an examination of the stunning eggs of the guillemot, each of which is so variable in pattern and colour that no two are ever the same, acclaimed ornithologist Tim Birkhead then looks at the eggs of hens, cuckoos and many other birds, revealing weird and wonderful facts about these miracles of nature. Woven around and supporting these facts are extraordinary stories of the individuals who from as far back as Ancient Egypt have been fixated on the study and collection of eggs, not always to the benefit of their conservation. Firmly grounded in science and enriched by a wealth of observation drawn from a lifetime spent studying birds,A Bird's Egg is an illuminating and engaging exploration of the science behind eggs and the history of man's obsession with them.

Boys Life

Author:
Publisher:
ISBN:
Size: 20.11 MB
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Boys' Life is the official youth magazine for the Boy Scouts of America. Published since 1911, it contains a proven mix of news, nature, sports, history, fiction, science, comics, and Scouting.

Ecology And Management Of Blackbirds Icteridae In North America

Author: George M. Linz
Publisher: CRC Press
ISBN: 135164355X
Size: 80.66 MB
Format: PDF, Docs
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Shortlisted for the 2018 TWS Wildlife Publication Awards in the edited book category The various species of new world blackbirds, often intermingled in large foraging flocks and nighttime roosts, collectively number in the hundreds of millions and are a dominant component of the natural and agricultural avifauna in North America today. Because of their abundance, conspicuous flocking behavior, and feeding habits, these species have often been in conflict with human endeavors. The pioneering publications on blackbirds were by F. E. L. Beal in 1900 and A. A. Allen in 1914. These seminal treatises laid the foundation for more than 1,000 descriptive and experimental studies on the life histories of blackbirds as well as their ecology and management in relation to agricultural damage and other conflicts such as caused by large winter roosting congregations. The wealth of information generated in over a century of research is found in disparate outlets that include government reports, conference proceedings, peer-reviewed journals, monographs, and books. For the first time, Ecology and Management of Blackbirds (Icteridae) in North America summarizes and synthesizes this vast body of information on the biology and life histories of blackbirds and their conflicts with humans into a single volume for researchers, wildlife managers, agriculturists, disease biologists, ornithologists, policy makers, and the public. The book reviews the life histories of red-winged blackbirds, yellow-headed blackbirds, common grackles, and brown-headed cowbirds. It provides in-depth coverage of the functional roles of blackbirds in natural and agricultural ecosystems. In doing so, this authoritative reference promotes the development of improved science-based, integrated management strategies to address conflicts when resolutions are needed.

Sky Dance Of The Woodcock

Author: Greg Hoch
Publisher: Bureau Oak Book
ISBN: 1609386272
Size: 11.88 MB
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Woodcock are one of the oddest birds in North America. They are a shorebird that got lost and ended up in the scrubby parts of the forest, and look like they were put together with the leftover parts of other birds. Oddities aside, each spring they rise to great beauty with their sky dance at dusk. Greg Hoch combines natural history, land management, scientific knowledge, and personal observation to examine this little game bird. Woodcock have a complex life history and the management of their habitat is also complex. The health of this bird can be considered a key indicator of what good forests look like.

Egg

Author: Robert Burton
Publisher: HarperCollins
ISBN:
Size: 22.38 MB
Format: PDF, ePub
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