I have the most marvellous app on my phone and iPad – Michael Morecombe and David Stewart Guide to Australian Birds – it is not free, but is a great source of information, plus each entry includes recordings of the bird songs for each species. It is a very useful tool to use when photographing birds – see the bird, play their song, and the bird in question comes in close to investigate who is in their territory. Obviously one takes care how one uses it, so as not to cause any distress, but I have used it a couple of times recently. There is a pair of Superb Fairy Wrens that visit my back garden daily, the male is only just beginning to get his grown up plumage, so his feathers look a little like a tatty patchwork of colour, while his missus is just a pale brownish colour. These are shots taken over the last few days using a 70-200mm lens.