Birds of Michigan —— Illustrated

-----

ISBN: 9781333457747 出版年：2016 页码：271 A J Cook Forgotten Books

In the text I have recorded such facts regarding the food habits of our birds as will enable every one to judge of the economic importance of the various species. Where possible, as it is in most cases, I have given the food habits of the entire family and omitted a mention of them in speaking of the separate species.