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Licensed Unlicensed Requires Authentication Published by Harvard University Press 1949

Pulation Declines and Increases

From the book The Birds of Concord

https://doi.org/10.4159/harvard.9780674284081.c8
From the book
The Birds of Concord
The Birds of Concord

Chapters in this book (15)

Frontmatter
Preface
Contents
Illustrations
The Birds of Concord
Introduction
Part I. Population Trends
Basic Factors
Birds as a Class
General Summary
Pulation Declines and Increases
Lists of Birds which have Increased or Declined
Part II. The Birds of the Concord Region
General Features
Systematic List
Bibliography
Index
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