We decided to produce this book, as we were aware of the difficulties of providing information on the methods available to field ornithologists or conservationists. We also believed that the difficulties of accessing methodology were hindering the development of the science and the enactment of effective conservation. Thus when we were asked how to conduct a project involving say foraging behavior or breeding biology, we could point out a few papers and describe some methods, but had no source that would outline the major techniques in a comprehen sive manner