Report On Banding And Observation Of Chimney Swifts Chaetura Pelagica Linnaeus At Cornell University

Report on Banding and Observation of Chimney Swifts  Chaetura Pelagica  Linnaeus  at Cornell University PDF
Author: Ina Pauline James
Publisher:
ISBN:
Size: 25.68 MB
Format: PDF, ePub
Category : Chimney swift
Languages : en
Pages :
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Book Description:

Bulletin

Bulletin PDF
Author:
Publisher:
ISBN:
Size: 60.91 MB
Format: PDF, ePub
Category : Agriculture
Languages : en
Pages :
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Book Description:

Durban Museum Novitates

Durban Museum Novitates PDF
Author:
Publisher:
ISBN:
Size: 18.73 MB
Format: PDF
Category : Natural history
Languages : en
Pages :
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Book Description:

Rspb Spotlight Swifts And Swallows

RSPB Spotlight Swifts and Swallows PDF
Author: Mike Unwin
Publisher: Bloomsbury Publishing
ISBN: 1472950097
Size: 31.24 MB
Format: PDF, Mobi
Category : Science
Languages : en
Pages : 128
View: 7493

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Book Description: People all over Britain and Europe have long welcomed the arrival of swifts and swallows as a promise of summer being just around the corner. And with their similar long wings and dashing flight, it is perhaps understandable that we often confuse the two birds. After all, they have much in common: both feed on flying insects, both breed around buildings, and both are long-distance migrants that spend winter in Africa. But appearances can be deceptive. Swifts and swallows are completely unrelated birds that have adapted through evolution to survive in similar ways. In Spotlight: Swifts and Swallows, Mike Unwin reveals their fascinating lifestyles, explains how and why they have acquired their similarities, and ways in which we can help protect them. The Spotlight series introduces readers to the lives and behaviour of our favourite animals with eye-catching colour photography and informative expert text.

The South African Archaeological Bulletin

The South African Archaeological Bulletin PDF
Author:
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ISBN:
Size: 78.72 MB
Format: PDF, ePub
Category : Ethnology
Languages : en
Pages :
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Book Description:

Academic American Encyclopedia

Academic American Encyclopedia PDF
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ISBN:
Size: 54.55 MB
Format: PDF, ePub
Category : Encyclopedias and dictionaries
Languages : en
Pages :
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Book Description: A twenty-one volume encyclopedia with 32,000 entries and more than 16,000 illustrations.

Swifts

Swifts PDF
Author: Phil Chantler
Publisher:
ISBN: 9780300079364
Size: 29.40 MB
Format: PDF
Category : Nature
Languages : en
Pages : 272
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Book Description: The second edition of this highly acclaimed book has been extensively revised by the author to take account of recent information, most particularly about the neotropical swifts, and several plates have been revised by the artist. Published in association with Christopher Helm/A & C Black

Swifts In A Tower

Swifts in a Tower PDF
Author: David Lack
Publisher:
ISBN:
Size: 10.23 MB
Format: PDF, ePub, Docs
Category : Apodidae
Languages : un
Pages : 239
View: 7603

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Book Description: The swift has greater mastery of the air than any other bird, but is one of the least known, as it nests inaccessibly in holes. The Author studied a colony in an Oxford tower, by substituting glass-backed nesting boxes for the ventilators in which they were nesting ; after which the birds could be watched from a few inches away, thus providing unique means of studying them. Their flight (which may last five hours), courtship and nesting behaviour were fully studied, and have been illustrated with unique photographs by electornic flash by H. N. Southern. Behaviour in the air was also observed, swifts being the only birds known to mate on the wing. They also drink, bathe and collect their food and nesting materials without alighting, and even spend the night on the wing. Swifts migrate to South Africa, but the old story that they hibernate contains some element of truth. The races of swifts are described, their birth-rate and death-rate analysed, and comparisons are made with the many tropical swifts, some of which (such as those whose nests provide 'Birds-nest soup') have habits as remarkable as those of our British bird. When first published in 1956, this book was the first full-length study of perhaps the most remarkable of all British birds, and now seventeen years later has become a classic in its field. Not only is it an invaluable text for ornithologists, but its non-technical language makes it suitable for readers with a general interest in natural history. Just below the tower where the swifts nested, Samuel Wilberforce and T. H. Huxley held their famous debate on evolution, and adaptation forms a recurrent theme in the book, its wider implications being considered in a final chapter. -- from dust jacket.

Journal

Journal PDF
Author: Society for British Entomology
Publisher:
ISBN:
Size: 51.18 MB
Format: PDF, ePub
Category : Entomology
Languages : en
Pages :
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Book Description:

Year Book

Year book PDF
Author: Swift & Company
Publisher:
ISBN:
Size: 67.30 MB
Format: PDF, ePub
Category : Meat industry and trade
Languages : en
Pages :
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