Intrinsic Data Functions

There is a migratory bird that comes down to our Sydney area every late spring. It's a native cuckoo.  I know this bird now but have never seen it.  Only hear it, particularly at 3am in the morning with it's demented calling echoing in the night.  In the daylight though there is no order in the bush. All the trees are crooked and the branches too. I went looking for the bird.That's what I did !, Couldn’t find anything. Lots of trees, sometimes sticks. I had my binoculars up their till my arms and eyebrows hurt. Looking through all the scraggly gum trees with their branches going every which way. Couldn’t see a thing.  There though.. a movement, I saw it.  The picture changed and suddenly I could hear it, see it, and understand that bird on the branch way over there, but now an instant later, it had my full attention. I slowly raised the binoculars.