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9781332232031 - B. Harrison Grave: Wyoming Birds: Ana Their Value to Agriculture (Classic Reprint) - Book
1
B. Harrison Grave (?):

Wyoming Birds: Ana Their Value to Agriculture (Classic Reprint) (?)

Delivery from: CanadaBook is in english languageNew book

ISBN: 9781332232031 (?) or 1332232035, in english, FB &c Ltd, New

HKD 97 (C$ 15.14)¹(without obligation)
In Stock, plus shipping
From Seller/Antiquarian
B. Harrison Grave, Books, Science and Nature, Wyoming Birds: Ana Their Value to Agriculture (Classic Reprint), Wyoming Birds: Ana Their Value to Agriculture (Classic Reprint)
seller comment:
Free shipping on orders above $25, new
Seller order number: 978133223203
Platform order number Indigo.ca: id-978133223203
Category: Books>Science and Nature
Data from 04/18/2017 16:10h
ISBN (alternative notations): 1-332-23203-5, 978-1-332-23203-1
9781332232031 - B Harrison Grave: Wyoming Birds - Book
2
B Harrison Grave (?):

Wyoming Birds (?)

Delivery from: United Kingdom of Great Britain and Northern IrelandBook is in english languageNew book

ISBN: 9781332232031 (?) or 1332232035, in english, Forgotten Books, New

HKD 102 (£ 9.58)¹(free shipping, without obligation)
in-stock
From Seller/Antiquarian
Excerpt from Wyoming Birds: Ana Their Value to Agriculture This bulletin is the outcome of a survey conducted by the Department of Zoology of the University of Wyoming for the purpose of ascertaining whether the balance of nature has been disturbed as more and more of the territory of the state has come under cultivation. It was thought that the changing conditions in the state, including increased raising of grain and planting of shade trees, would enable more birds to find food and suitable nesting places than formerly. The birds seemed as likely to be affected as any group of animals and the extensive data collected at an earlier period seemed to furnish a basis for comparison. Mr. Walker, who had had experience in collecting and who is now in the government service, was employed to assist with the work of the survey. He has spent two summers in the field collecting and has brought together all available data from former collectors in the state. Letters were also written to prominent citizens of Wyoming in regard to the abundance of birds now as compared with ten years ago. The results of the work of collectors and the observations of citizens all indicate that many birds are on the increase, especially those which live partly or wholly upon seeds or insects and which are consequently of most benefit to farmers in the control of insect pests and weeds. Old residents of the state, and collectors whose experience extends over a period of several years, are almost universally of the opinion that certain birds are much more abundant now than formerly. In their replies to circular letters sent out, they have frequently specified the species which have been affected in this way. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www. forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the wor.
Seller order number: 9781332232031
Platform order number Wordery.com: 9781332232031
Data from 04/18/2017 16:10h
ISBN (alternative notations): 1-332-23203-5, 978-1-332-23203-1

9781332232031

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