Handbook of Ethological Methods
"Until the publication of the first edition of Lehner's book, those who study animal behavior in natural populations had to dig through disparate sources to find advice about methods. Lehner's synthesis was a great service to his colleagues, and he has continued to search in preparing this expanded and updated second edition...The book is very clearly written and easy to read. All of the material is accessible and the bibliography is extensive. I strongly recommend the section that deals with research design."   The Quarterly Review of Biology