Learning bird sounds is difficult but well worth the effort. There is no quick and easy solution. Bird recordings on tapes and CD can help you to learn but eventually you need to get into the field, hear a bird, see it and put the two together. Once you get to know a few common bird sounds, it becomes progressively easier to learn new ones. You will find that you start to automatically filter out the more familiar sounds but will be immediately aware when you hear unusual ones.
All birds have certain typical behavioural characteristics.
Some birds like pipits run about on open ground, stopping periodically to survey their surroundings, whilst others like dunnocks and robins tend to hop on the ground. Though some field guides will point out some of the more obvious behavioural characteristics of a bird, there is ultimately no substitute for simply spending time in the field watching birds and getting to know how each behaves. With experience you will note ever more subtle differences in bird behaviour. It is quite possible to simply take a quick glance at a bird, and even without using binoculars, identify it according to what it's doing, the posture it adopts, and so on. Jizz' is a rather subjective feature but it is very useful in the field and will often enable a very swift identification to be made.