Bird nesting outside my house window.

I was away for almost 2 months and didn't notice that a bird had made a nest just out side my house window. It is quite interesting as this type of bird (a Kind of Sunbird) normally would create their nest in the tress near parks or forest. I am still trying to figure out what sort of sunbird this is till I see rest rest of the body. In the mean time I will look out for this bird. If anyone knows this bird please feel free to give the name. Thanks.

Photo taken from my house room with D300 300mm.