Download or read book The Alex Studies written by Irene M. PEPPERBERG and published by Harvard University Press. This book was released on 2009-06-30 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: 20 years ago Pepperberg set out to discover whether results of pigeon studies necessarily meant that other birds were incapable of mastering cognitive concepts and the rudiments of referential speech. This is a synthesis of her studies.