The bird park is a short taxi ride away from downtown Kuala Lumpur. It is located in a canyon that is covered with a huge net. You have (mostly) unobstructed views of the birds because you are inside the 'cage' and you can track them as if you were in nature. Using a shallow depth of field is necessary to blur the man-made structures that are always visible in environments like this.
I was walking through the bird park in Kuala Lumpur, when I saw a beautiful Golden Pheasant (native bird of China). I followed the (not very cooperative) bird for quite a while and took this photo through the grass with my long lens.