Collects together a series of essays and commentaries by leading authorities about active areas of research on the biology of birds.Essays Presented for the Centennial of the American Ornitholgistsa#39; Union Alan H. Brush, George A. Clark, Jr. other current ... The Endangered Species Act of 1973 is another of the important laws protecting wildlife in the United States. Among other things, the act ... Many foreign species have been introduced, either accidentally or on purpose, into North American ecosystems (Long 1981). Although mostanbsp;...
Title | : | Perspectives in Ornithology |
Author | : | Alan H. Brush, George A. Clark, Jr. |
Publisher | : | Cambridge University Press - 1983-08-31 |
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