This guide is fantastic! It covers all the major topics of interest which will enable you to uncover any mystery, including large sections on individual feathers, skulls and of course the tracks themselves. There also excellent sections on pellets, behavioural and feeding signs, droppings, and nests and roosts. It is a really well-thought out compilation of scientific, yet completely accessible, information covering all aspects of bird-life. It is obviously written by people with a deep interest in the subject and a lot of experience. Accessible format and good clear illustrations. Excellent.